热处理对3J1弹性合金韧性的影响  

Investigation of Tensile Fracture of 3J1 Alloy

作　　者：张明远[1] 孙建春[1] 陈登明[1] 马毅龙[1] 周安若[1] 

机构地区：[1]重庆科技学院冶金与材料工程学院,重庆401331

出　　处：《材料保护》2013年第S1期125-126,共2页Materials Protection

基　　金：国家自然科学青年基金项目资助(51201191);重庆市科技平台与基地建设计划项目资助(ccstc2011pt-gc70007);重庆科技学院博士科研启动基金项目资助

摘　　要：时效处理是改善3J1弹性合金性能的常用手段。针对现有的时效工艺和研究方法,在920℃对该合金进行3h时效处理,利用金相显微镜对处理前后材料的组织结构进行分析;利用扫描电子显微镜(SEM)对其拉伸断口进行了观察分析。结果表明,时效处理后,材料内部出现了大量的第二相析出物,材料的韧性极大提高,断口表现为典型的韧窝形貌。Constant elasticity ferromagnetic by changing the alloy chemical composition and heat treatment process,in a great scope to change its performance to meet the various needs.In This paper a 3J1 tensile sample was aged at 920℃ for 3 h in the SKY-12 heat treatment furnace.The microstructure of 3J1 alloy was observed by optical microscopy and the fracture was investigated by electron scanning microscopy(SEM).Results showed that there were many dispersed second phases in 3J1 alloy after aging.Experimental results show that the aging treatment can improve flexibility alloy plasticity and toughness.

关 键 词：3J1弹性合金 时效 组织 断口 

分 类 号：TG156.92[金属学及工艺—热处理]