新型奥氏体高温耐热合金热震性能的研究  

Study on Thermal Shock Resistance of a New Type Austenitic Heat-Resistant Alloy

作　　者：张世杰[1] 刘晓丹[1] 周永伏[1] 

机构地区：[1]河北廊坊职业技术学院,河北廊坊065000

出　　处：《铸造》2014年第1期71-74,共4页Foundry

摘　　要：在ZG35Cr24Ni7SiN的基础上,以Mn部分代替Ni,制备了一种新型奥氏体高温耐热合金;同时为了弥补Mn含量增加对合金高温性能造成的损害以及减缓合金组织晶粒粗化与产生回火脆性的不利倾向,合金中添加了适量的稀土元素。结果表明,这种更为经济的新型奥氏体耐热合金具有良好的高温热震性能。With Mn partially replacingNi, a new type ofaustenitic heat-resistant alloy was prepared on the basis of ZG35Cr24Ni7SiN; at the same time, to make up the damage of the high-temperature performance resulted from the increase of the Mn content and reduce the disadvantageous trend of the grain growth coarsening and the temper brittleness, the proper quantities of rare earth elements were added into the alloy. The results show that the more economical new type austenitic heat-resistant alloy has good thermal shock resistance.

关 键 词：奥氏体耐热合金 高温性能 热震试验 热震性能 

分 类 号：TG132.33[一般工业技术—材料科学与工程]