Microstructure, thermomechanical and shape memory properties of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with B addition

CORC > 厦门大学 > 材料学院－已发表论文

	Microstructure, thermomechanical and shape memory properties of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with B addition
	Yang, Shuiyuan ; Wang, Cuiping ; Shi, Zhan ; Liu, Xingjun ; Yang SY(杨水源) ; Wang CP(王翠萍) ; Shi Z(施展) ; Liu XJ(刘兴军)
刊名	http://dx.doi.org/10.1016/j.intermet.2013.01.007
	2013
关键词	PHASE-TRANSFORMATION TEMPERATURES MARTENSITIC-TRANSFORMATION THERMAL-STABILITY SYSTEM NI2+XMN1-XGA NI54MN25GA21 DEFORMATION
英文摘要	National Natural Science Foundation of China [51031003, 51201145]; Ministry of Science and Technology of China [2009DFA52170]; Microstructure, martensitic transformation, thermomechanical stability and shape memory effect of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with small B addition, were investigated by thermomechanical cycling. It is found that the high degree of martensite stabilization is observed in all studied alloys due to the compressive pre-strain. The results show that B addition and thermomechanical cycling facilitate the precipitation of the ordered gamma' phase. The precipitation alters the chemical compositions of martensite and results in the decrease of martensitic transformation temperature of the alloys. As a result, the formation of the ordered gamma' precipitate has negative effect on the thermomechanical stability of the alloys. Results further demonstrate that the martensite reorientation proceed becomes easier with small B addition due to the decrease of the yield strength, which can effectively improve shape memory effect of the alloys. However, with increasing B concentration and number of cycles, the shape memory effect gradually decreases due to the combined effects of the roles of gamma phase and gamma' precipitate, and thermomechanical cycling process. (C) 2013 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87274]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Yang, Shuiyuan,Wang, Cuiping,Shi, Zhan,et al. Microstructure, thermomechanical and shape memory properties of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with B addition[J]. http://dx.doi.org/10.1016/j.intermet.2013.01.007,2013.
APA	Yang, Shuiyuan.,Wang, Cuiping.,Shi, Zhan.,Liu, Xingjun.,杨水源.,...&刘兴军.(2013).Microstructure, thermomechanical and shape memory properties of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with B addition.http://dx.doi.org/10.1016/j.intermet.2013.01.007.
MLA	Yang, Shuiyuan,et al."Microstructure, thermomechanical and shape memory properties of two-phase Ni-Mn-Fe-Ga high-temperature shape memory alloys with B addition".http://dx.doi.org/10.1016/j.intermet.2013.01.007 (2013).