B元素对Ni-Fe-Ga-Co磁致形状记忆合金相变及力学性能的影响  

Effect of B Addition on the Phase Transition and Mechanical Properties of Ni-Fe-Ga-Co Alloys

作　　者：张清华 ZHANG Qing-hua(Shanxi Institute of Technology,Yangquan 045000,China)

机构地区：[1]山西工程技术学院,山西阳泉045000

出　　处：《化工管理》2021年第29期37-38,42,共3页Chemical Engineering Management

基　　金：山西省“1331工程”重点学科建设资金;山西省高等学校科技创新项目(项目编号:2019L0987);阳泉市重点研发(项目编号:2019G18);山西工程技术学院科研项目(项目编号:KYQD-01)。

摘　　要：文章研究了B元素的添加对Ni_(46)-xFe_(18)Ga_(27)Co_(9)B_(x)(at.%,x=0,0.1,0.5)磁致形状记忆合金显微组织、相变温度和力学性能的影响。结果表明:在Ni_(46)-xFe_(18)Ga_(27)Co_(9)B_(x)(at.%,x=0,0.1,0.5)合金中用B元素替代部分Ni元素,合金的抗压强度和塑性同时得到了提高,其相变温度随B含量的增加而降低。常温下各成分合金都为奥氏体相,随着B含量的增加会有弥散相析出。The effect of B addition on the microstructure,transformation temperatures and mechanical properties of Ni_(46)-xFe_(18)Ga_(27)Co_(9)B_(x)(at.%,x=0,0.1,0.5)magnetic shape memory alloys was investigated.The results show that the substitution of B for Ni in Ni_(46)-xFe_(18)Ga_(27)Co_(9)B_(x)(x=0,0.1,0.5)alloys is proved to be effictive in increasing the compressive strength and ductility.Meanwhile,the martensitic transformation temperatures decreased with increasing B content in these alloys.,all the alloys are austenite phase at room temperature,with the increase of B content,and the dispersion phase precipitates with the increase of B content.

关 键 词：Ni_(46)-xFe_(18)Ga_(27)Co_(9)B_(x) 磁致形状记忆合金 相变温度 力学性能 

分 类 号：TG139.6[一般工业技术—材料科学与工程]