Fracture behavior and structural transition of Ni46Mn33Ga17CU4-xZrx   alloys

doi:10.1016/j.msea.2014.03.127

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	Fracture behavior and structural transition of Ni46Mn33Ga17CU4-xZrx alloys
	Tian, Bing ; Chen, Feng ; Tong, Yunxiang ; Li, Li ; Zheng, Yufeng ; Li, Qizhen
刊名	materials science and engineering a structural materials properties microstructure and processing
	2014
关键词	Ni-Mn-Ga alloys Intermetallics Mechanical properties Microstructure Phase transformation NI-MN-GA SHAPE-MEMORY ALLOY FIELD-INDUCED STRAIN MARTENSITIC-TRANSFORMATION MECHANICAL-PROPERTIES PHASE-TRANSFORMATION ZR TI MICROSTRUCTURE COMPOSITES
DOI	10.1016/j.msea.2014.03.127
英文摘要	This study investigated the fracture behavior and structural transition of Ni46Mn33Ga17Cu4-xZrx (x=0, 2, 4) alloys after undergoing quasi-static compression and ball milling. The introduction of Zr-rich second phase enhanced the compressive strength without improving the mechanical ductility of the alloys. The dispersed second phase formed weak interfacial bonding with the martensitic matrix, which resulted in the low plasticity. After ball milling, the dual phase alloy particles were separated to the second phase particles and the matrix phase particles. The average particle size was reduced with increasing Zr content since the size of the second phase particles was much smaller than that of the matrix particles. Moreover, the structure of the second phase was almost not changed by the ball milling. The martensitic transformation disappears for all the alloys after ball milling because of the disordering of the martensitic matrix. Post-annealing at 800 degrees C can restore the martensitic transformation of the Cu4 and Cu2Zr2 alloys but is not effective to restore that of the Zr4 alloy. (C) 2014 Elsevier B.V. All rights reserved.; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; SCI(E); EI; 3; ARTICLE; tianbing@hrbeu.edu.cn; 95-101; 607
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/212134]
专题	工学院
推荐引用方式 GB/T 7714	Tian, Bing,Chen, Feng,Tong, Yunxiang,et al. Fracture behavior and structural transition of Ni46Mn33Ga17CU4-xZrx alloys[J]. materials science and engineering a structural materials properties microstructure and processing,2014.
APA	Tian, Bing,Chen, Feng,Tong, Yunxiang,Li, Li,Zheng, Yufeng,&Li, Qizhen.(2014).Fracture behavior and structural transition of Ni46Mn33Ga17CU4-xZrx alloys.materials science and engineering a structural materials properties microstructure and processing.
MLA	Tian, Bing,et al."Fracture behavior and structural transition of Ni46Mn33Ga17CU4-xZrx alloys".materials science and engineering a structural materials properties microstructure and processing (2014).