Dynamics of pore formation during laser powder bed fusion additive manufacturing.

Abstract:

:Laser powder bed fusion additive manufacturing is an emerging 3D printing technique for the fabrication of advanced metal components. Widespread adoption of it and similar additive technologies is hampered by poor understanding of laser-metal interactions under such extreme thermal regimes. Here, we elucidate the mechanism of pore formation and liquid-solid interface dynamics during typical laser powder bed fusion conditions using in situ X-ray imaging and multi-physics simulations. Pores are revealed to form during changes in laser scan velocity due to the rapid formation then collapse of deep keyhole depressions in the surface which traps inert shielding gas in the solidifying metal. We develop a universal mitigation strategy which eliminates this pore formation process and improves the geometric quality of melt tracks. Our results provide insight into the physics of laser-metal interaction and demonstrate the potential for science-based approaches to improve confidence in components produced by laser powder bed fusion.

journal_name

Nat Commun

journal_title

Nature communications

authors

Martin AA,Calta NP,Khairallah SA,Wang J,Depond PJ,Fong AY,Thampy V,Guss GM,Kiss AM,Stone KH,Tassone CJ,Nelson Weker J,Toney MF,van Buuren T,Matthews MJ

doi

10.1038/s41467-019-10009-2

subject

Has Abstract

pub_date

2019-04-30 00:00:00

pages

1987

issue

1

issn

2041-1723

pii

10.1038/s41467-019-10009-2

journal_volume

10

pub_type

杂志文章
  • The X-linked trichothiodystrophy-causing gene RNF113A links the spliceosome to cell survival upon DNA damage.

    abstract::Prolonged cell survival occurs through the expression of specific protein isoforms generated by alternate splicing of mRNA precursors in cancer cells. How alternate splicing regulates tumor development and resistance to targeted therapies in cancer remain poorly understood. Here we show that RNF113A, whose loss-of-fun...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-020-15003-7

    authors: Shostak K,Jiang Z,Charloteaux B,Mayer A,Habraken Y,Tharun L,Klein S,Xu X,Duong HQ,Vislovukh A,Close P,Florin A,Rambow F,Marine JC,Büttner R,Chariot A

    更新日期:2020-03-09 00:00:00

  • Loss of the E3 ubiquitin ligase MKRN1 represses diet-induced metabolic syndrome through AMPK activation.

    abstract::AMP-activated protein kinase (AMPK) plays a key role in controlling energy metabolism in response to physiological and nutritional status. Although AMPK activation has been proposed as a promising molecular target for treating obesity and its related comorbidities, the use of pharmacological AMPK activators has been m...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-018-05721-4

    authors: Lee MS,Han HJ,Han SY,Kim IY,Chae S,Lee CS,Kim SE,Yoon SG,Park JW,Kim JH,Shin S,Jeong M,Ko A,Lee HY,Oh KJ,Lee YH,Bae KH,Koo SH,Kim JW,Seong JK,Hwang D,Song J

    更新日期:2018-08-24 00:00:00

  • Superconducting metamaterials for waveguide quantum electrodynamics.

    abstract::Embedding tunable quantum emitters in a photonic bandgap structure enables control of dissipative and dispersive interactions between emitters and their photonic bath. Operation in the transmission band, outside the gap, allows for studying waveguide quantum electrodynamics in the slow-light regime. Alternatively, tun...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-018-06142-z

    authors: Mirhosseini M,Kim E,Ferreira VS,Kalaee M,Sipahigil A,Keller AJ,Painter O

    更新日期:2018-09-12 00:00:00

  • High-resolution ex vivo NMR spectroscopy of human Z α1-antitrypsin.

    abstract::Genetic mutations predispose the serine protease inhibitor α1-antitrypsin to misfolding and polymerisation within hepatocytes, causing liver disease and chronic obstructive pulmonary disease. This misfolding occurs via a transiently populated intermediate state, but our structural understanding of this process is limi...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-020-20147-7

    authors: Jagger AM,Waudby CA,Irving JA,Christodoulou J,Lomas DA

    更新日期:2020-12-11 00:00:00

  • Exploiting the speckle-correlation scattering matrix for a compact reference-free holographic image sensor.

    abstract::The word 'holography' means a drawing that contains all of the information for light-both amplitude and wavefront. However, because of the insufficient bandwidth of current electronics, the direct measurement of the wavefront of light has not yet been achieved. Though reference-field-assisted interferometric methods h...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms13359

    authors: Lee K,Park Y

    更新日期:2016-10-31 00:00:00

  • Active acetylcholine receptors prevent the atrophy of skeletal muscles and favor reinnervation.

    abstract::Denervation of skeletal muscles induces severe muscle atrophy, which is preceded by cellular alterations such as increased plasma membrane permeability, reduced resting membrane potential and accelerated protein catabolism. The factors that induce these changes remain unknown. Conversely, functional recovery following...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-019-14063-8

    authors: Cisterna BA,Vargas AA,Puebla C,Fernández P,Escamilla R,Lagos CF,Matus MF,Vilos C,Cea LA,Barnafi E,Gaete H,Escobar DF,Cardozo CP,Sáez JC

    更新日期:2020-02-26 00:00:00

  • Formation of nitrogen-doped graphene nanoscrolls by adsorption of magnetic γ-Fe2O3 nanoparticles.

    abstract::Graphene nanoscrolls are Archimedean-type spirals formed by rolling single-layer graphene sheets. Their unique structure makes them conceptually interesting and understanding their formation gives important information on the manipulation and characteristics of various carbon nanostructures. Here we report a 100% effi...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms3319

    authors: Sharifi T,Gracia-Espino E,Barzegar HR,Jia X,Nitze F,Hu G,Nordblad P,Tai CW,Wågberg T

    更新日期:2013-01-01 00:00:00

  • Phase fluctuations and the absence of topological defects in a photo-excited charge-ordered nickelate.

    abstract::The dynamics of an order parameter's amplitude and phase determines the collective behaviour of novel states emerging in complex materials. Time- and momentum-resolved pump-probe spectroscopy, by virtue of measuring material properties at atomic and electronic time scales out of equilibrium, can decouple entangled deg...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms1837

    authors: Lee WS,Chuang YD,Moore RG,Zhu Y,Patthey L,Trigo M,Lu DH,Kirchmann PS,Krupin O,Yi M,Langner M,Huse N,Robinson JS,Chen Y,Zhou SY,Coslovich G,Huber B,Reis DA,Kaindl RA,Schoenlein RW,Doering D,Denes P,Schlotter WF

    更新日期:2012-05-15 00:00:00

  • Dynamic anticrack propagation in snow.

    abstract::Continuum numerical modeling of dynamic crack propagation has been a great challenge over the past decade. This is particularly the case for anticracks in porous materials, as reported in sedimentary rocks, deep earthquakes, landslides, and snow avalanches, as material inter-penetration further complicates the problem...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-018-05181-w

    authors: Gaume J,Gast T,Teran J,van Herwijnen A,Jiang C

    更新日期:2018-08-03 00:00:00

  • Long-term hepatitis B infection in a scalable hepatic co-culture system.

    abstract::Hepatitis B virus causes chronic infections in 250 million people worldwide. Chronic hepatitis B virus carriers are at risk of developing fibrosis, cirrhosis, and hepatocellular carcinoma. A prophylactic vaccine exists and currently available antivirals can suppress but rarely cure chronic infections. The study of hep...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-017-00200-8

    authors: Winer BY,Huang TS,Pludwinski E,Heller B,Wojcik F,Lipkowitz GE,Parekh A,Cho C,Shrirao A,Muir TW,Novik E,Ploss A

    更新日期:2017-07-25 00:00:00

  • Engineering modular and orthogonal genetic logic gates for robust digital-like synthetic biology.

    abstract::Modular and orthogonal genetic logic gates are essential for building robust biologically based digital devices to customize cell signalling in synthetic biology. Here we constructed an orthogonal AND gate in Escherichia coli using a novel hetero-regulation module from Pseudomonas syringae. The device comprises two co...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms1516

    authors: Wang B,Kitney RI,Joly N,Buck M

    更新日期:2011-10-18 00:00:00

  • RS-1 enhances CRISPR/Cas9- and TALEN-mediated knock-in efficiency.

    abstract::Zinc-finger nuclease, transcription activator-like effector nuclease and CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 (CRISPR-associated protein 9) are becoming major tools for genome editing. Importantly, knock-in in several non-rodent species has been finally achieved thanks to these custo...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms10548

    authors: Song J,Yang D,Xu J,Zhu T,Chen YE,Zhang J

    更新日期:2016-01-28 00:00:00

  • Calculating with light using a chip-scale all-optical abacus.

    abstract::Machines that simultaneously process and store multistate data at one and the same location can provide a new class of fast, powerful and efficient general-purpose computers. We demonstrate the central element of an all-optical calculator, a photonic abacus, which provides multistate compute-and-store operation by int...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-017-01506-3

    authors: Feldmann J,Stegmaier M,Gruhler N,Ríos C,Bhaskaran H,Wright CD,Pernice WHP

    更新日期:2017-11-02 00:00:00

  • Complex formation of APP with GABAB receptors links axonal trafficking to amyloidogenic processing.

    abstract::GABAB receptors (GBRs) are key regulators of synaptic release but little is known about trafficking mechanisms that control their presynaptic abundance. We now show that sequence-related epitopes in APP, AJAP-1 and PIANP bind with nanomolar affinities to the N-terminal sushi-domain of presynaptic GBRs. Of the three in...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-019-09164-3

    authors: Dinamarca MC,Raveh A,Schneider A,Fritzius T,Früh S,Rem PD,Stawarski M,Lalanne T,Turecek R,Choo M,Besseyrias V,Bildl W,Bentrop D,Staufenbiel M,Gassmann M,Fakler B,Schwenk J,Bettler B

    更新日期:2019-03-22 00:00:00

  • Non-equilibrium crystallization pathways of manganese oxides in aqueous solution.

    abstract::Aqueous precipitation of transition metal oxides often proceeds through non-equilibrium phases, whose appearance cannot be anticipated from traditional phase diagrams. Without a precise understanding of which metastable phases form, or their lifetimes, targeted synthesis of specific metal oxides can become a trial-and...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-019-08494-6

    authors: Sun W,Kitchaev DA,Kramer D,Ceder G

    更新日期:2019-02-04 00:00:00

  • Cropland expansion in the United States produces marginal yields at high costs to wildlife.

    abstract::Recent expansion of croplands in the United States has caused widespread conversion of grasslands and other ecosystems with largely unknown consequences for agricultural production and the environment. Here we assess annual land use change 2008-16 and its impacts on crop yields and wildlife habitat. We find that cropl...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-020-18045-z

    authors: Lark TJ,Spawn SA,Bougie M,Gibbs HK

    更新日期:2020-09-09 00:00:00

  • Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor.

    abstract::The recent discovery of high-temperature superconductivity in iron-based compounds has attracted much attention. How to further increase the superconducting transition temperature (T(c)) and how to understand the superconductivity mechanism are two prominent issues facing the current study of iron-based superconductor...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms1946

    authors: Liu D,Zhang W,Mou D,He J,Ou YB,Wang QY,Li Z,Wang L,Zhao L,He S,Peng Y,Liu X,Chen C,Yu L,Liu G,Dong X,Zhang J,Chen C,Xu Z,Hu J,Chen X,Ma X,Xue Q,Zhou XJ

    更新日期:2012-07-03 00:00:00

  • Observation of Weyl nodes and Fermi arcs in tantalum phosphide.

    abstract::A Weyl semimetal possesses spin-polarized band-crossings, called Weyl nodes, connected by topological surface arcs. The low-energy excitations near the crossing points behave the same as massless Weyl fermions, leading to exotic properties like chiral anomaly. To have the transport properties dominated by Weyl fermion...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms11006

    authors: Xu N,Weng HM,Lv BQ,Matt CE,Park J,Bisti F,Strocov VN,Gawryluk D,Pomjakushina E,Conder K,Plumb NC,Radovic M,Autès G,Yazyev OV,Fang Z,Dai X,Qian T,Mesot J,Ding H,Shi M

    更新日期:2016-03-17 00:00:00

  • Graphene-enabled electron microscopy and correlated super-resolution microscopy of wet cells.

    abstract::The application of electron microscopy to hydrated biological samples has been limited by high-vacuum operating conditions. Traditional methods utilize harsh and laborious sample dehydration procedures, often leading to structural artefacts and creating difficulties for correlating results with high-resolution fluores...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms8384

    authors: Wojcik M,Hauser M,Li W,Moon S,Xu K

    更新日期:2015-06-11 00:00:00

  • Towards outperforming conventional sensor arrays with fabricated individual photonic vapour sensors inspired by Morpho butterflies.

    abstract::Combining vapour sensors into arrays is an accepted compromise to mitigate poor selectivity of conventional sensors. Here we show individual nanofabricated sensors that not only selectively detect separate vapours in pristine conditions but also quantify these vapours in mixtures, and when blended with a variable mois...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms8959

    authors: Potyrailo RA,Bonam RK,Hartley JG,Starkey TA,Vukusic P,Vasudev M,Bunning T,Naik RR,Tang Z,Palacios MA,Larsen M,Le Tarte LA,Grande JC,Zhong S,Deng T

    更新日期:2015-09-01 00:00:00

  • A bioinspired hydrogen bond-triggered ultrasensitive ionic mechanoreceptor skin.

    abstract::Biological cellular structures have inspired many scientific disciplines to design synthetic structures that can mimic their functions. Here, we closely emulate biological cellular structures in a rationally designed synthetic multicellular hybrid ion pump, composed of hydrogen-bonded [EMIM+][TFSI-] ion pairs on the s...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-019-11973-5

    authors: Amoli V,Kim JS,Jee E,Chung YS,Kim SY,Koo J,Choi H,Kim Y,Kim DH

    更新日期:2019-09-05 00:00:00

  • Strain-resolved analysis of hospital rooms and infants reveals overlap between the human and room microbiome.

    abstract::Preterm infants exhibit different microbiome colonization patterns relative to full-term infants, and it is speculated that the hospital room environment may contribute to infant microbiome development. Here, we present a genome-resolved metagenomic study of microbial genotypes from the gastrointestinal tracts of infa...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-017-02018-w

    authors: Brooks B,Olm MR,Firek BA,Baker R,Thomas BC,Morowitz MJ,Banfield JF

    更新日期:2017-11-27 00:00:00

  • Were changes in stress state responsible for the 2019 Ridgecrest, California, earthquakes?

    abstract::Monitoring the Earth's stress state plays a role in our understanding of an earthquake's mechanism and in the distribution of hazards. Crustal deformation due to the July 2019 earthquake sequence in Ridgecrest (California) that culminated in a preceding quake of magnitude (M) 6.4 and a subsequent M7.1 quake caused str...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-020-16867-5

    authors: Nanjo KZ

    更新日期:2020-06-17 00:00:00

  • The IncP-1 plasmid backbone adapts to different host bacterial species and evolves through homologous recombination.

    abstract::Plasmids are important members of the bacterial mobile gene pool, and are among the most important contributors to horizontal gene transfer between bacteria. They typically harbour a wide spectrum of host beneficial traits, such as antibiotic resistance, inserted into their backbones. Although these inserted elements ...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms1267

    authors: Norberg P,Bergström M,Jethava V,Dubhashi D,Hermansson M

    更新日期:2011-01-01 00:00:00

  • Greenhouse conditions induce mineralogical changes and dolomite accumulation in coralline algae on tropical reefs.

    abstract::Human-induced ocean acidification and warming alter seawater carbonate chemistry reducing the calcification of reef-building crustose coralline algae (CCA), which has implications for reef stability. However, due to the presence of multiple carbonate minerals with different solubilities in seawater, the algal mineralo...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms4310

    authors: Diaz-Pulido G,Nash MC,Anthony KR,Bender D,Opdyke BN,Reyes-Nivia C,Troitzsch U

    更新日期:2014-01-01 00:00:00

  • rec-YnH enables simultaneous many-by-many detection of direct protein-protein and protein-RNA interactions.

    abstract::Knowing which proteins and RNAs directly interact is essential for understanding cellular mechanisms. Unfortunately, discovering such interactions is costly and often unreliable. To overcome these limitations, we developed rec-YnH, a new yeast two and three-hybrid-based screening pipeline capable of detecting interact...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-018-06128-x

    authors: Yang JS,Garriga-Canut M,Link N,Carolis C,Broadbent K,Beltran-Sastre V,Serrano L,Maurer SP

    更新日期:2018-09-14 00:00:00

  • Functional profiling of single CRISPR/Cas9-edited human long-term hematopoietic stem cells.

    abstract::In the human hematopoietic system, rare self-renewing multipotent long-term hematopoietic stem cells (LT-HSCs) are responsible for the lifelong production of mature blood cells and are the rational target for clinical regenerative therapies. However, the heterogeneity in the hematopoietic stem cell compartment and var...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-019-12726-0

    authors: Wagenblast E,Azkanaz M,Smith SA,Shakib L,McLeod JL,Krivdova G,Araújo J,Shultz LD,Gan OI,Dick JE,Lechman ER

    更新日期:2019-10-18 00:00:00

  • A gatekeeper helix determines the substrate specificity of Sjögren-Larsson Syndrome enzyme fatty aldehyde dehydrogenase.

    abstract::Mutations in the gene coding for membrane-bound fatty aldehyde dehydrogenase (FALDH) lead to toxic accumulation of lipid species and development of the Sjögren-Larsson Syndrome (SLS), a rare disorder characterized by skin defects and mental retardation. Here, we present the crystallographic structure of human FALDH, t...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms5439

    authors: Keller MA,Zander U,Fuchs JE,Kreutz C,Watschinger K,Mueller T,Golderer G,Liedl KR,Ralser M,Kräutler B,Werner ER,Marquez JA

    更新日期:2014-07-22 00:00:00

  • Spin-torque-induced dynamics at fine-split frequencies in nano-oscillators with two stacked vortices.

    abstract::The gyrotropic rotation around the equilibrium position constitutes the fundamental excitation of magnetic vortices in nanostructures. The frequency of this mode varies with material and sample geometry, but is independent of the vortex handedness and its core direction. Here, we demonstrate that this degeneracy is li...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/ncomms7409

    authors: Sluka V,Kákay A,Deac AM,Bürgler DE,Schneider CM,Hertel R

    更新日期:2015-03-03 00:00:00

  • Patterns of genomic evolution in advanced melanoma.

    abstract::Genomic alterations occurring during melanoma progression and the resulting genomic heterogeneity between metastatic deposits remain incompletely understood. Analyzing 86 metastatic melanoma deposits from 53 patients with whole-exome sequencing (WES), we show a low branch to trunk mutation ratio and little intermetast...

    journal_title:Nature communications

    pub_type: 杂志文章

    doi:10.1038/s41467-018-05063-1

    authors: Birkeland E,Zhang S,Poduval D,Geisler J,Nakken S,Vodak D,Meza-Zepeda LA,Hovig E,Myklebost O,Knappskog S,Lønning PE

    更新日期:2018-07-10 00:00:00