Abstract：
:Recently, CuZr-based bulk metallic glass (BMG) composites reinforced by the TRIP (transformation-induced plasticity) effect have been explored in attempt to accomplish an optimal of trade-off between strength and ductility. However, the design of such BMG composites with advanced mechanical properties still remains a big challenge for materials engineering. In this work, we proposed a technique of instantaneously and locally arc-melting BMG plate to artificially induce the precipitation of B2 crystals in the glassy matrix and then to tune mechanical properties. Through adjusting local melting process parameters (i.e. input powers, local melting positions, and distances between the electrode and amorphous plate), the size, volume fraction, and distribution of B2 crystals were well tailored and the corresponding formation mechanism was clearly clarified. The resultant BMG composites exhibit large compressive plasticity and high strength together with obvious work-hardening ability. This compelling approach could be of great significance for the steady development of metastable CuZr-based alloys with excellent mechanical properties.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Qin YS,Han XL,Song KK,Tian YH,Peng CX,Wang L,Sun BA,Wang G,Kaban I,Eckert Jdoi
10.1038/srep42518subject
Has Abstractpub_date
2017-02-13 00:00:00pages
42518issn
2045-2322pii
srep42518journal_volume
7pub_type
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