Enhanced strength and transformation-induced plasticity in rapidly solidified Zr-Co-(Al) alloys

SCRIPTA MATERIALIA

卷:68

Article

Li, C. J.^1,2  Tan, J.^1,2,3  Wang, G.⁴  Bednarcik, J.⁵  Zhu, X. K.¹  Zhang, Y.²  Stoica, M.²  Kuehn, U.²  Eckert, J.^2,3 

[1] Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Peoples R China

[2] IFW Dresden, Inst Complex Mat, D-01171 Dresden, Germany

[3] Tech Univ Dresden, Inst Mat Sci, D-01062 Dresden, Germany

[4] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China

[5] DESY, HASYLAB, D-22603 Hamburg, Germany

关键词: Suction casting;    Compression test;    Bulk amorphous composites;    Transformation-induced plasticity;   

DOI  :  10.1016/j.scriptamat.2013.02.029

来源: Elsevier

【 摘 要 】

Transformation-induced plasticity and significant work-hardening capability were verified to be an effective way to enhance the performance of materials. This work reports on a Zr49Co49Al2 alloy obtained by traditional water-cooled copper mold casting with high strength and large plasticity due to B2-to-B33 deformation-induced martensitic transformation. The B33 martensite with orthorhombic structure does not form spontaneously above room temperature in Zr-Co-(Al) alloys, except when it is induced by local stress concentration. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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