退火工艺对4J36因瓦合金冷轧板组织与性能的影响  

Effect of annealing process on microstructure and properties of cold rolled 4J36 invar alloy sheet

作　　者：李大航[1] 王柏羽 赵刚[1] 刘璇[1] 周洪庆[1] 朱晓雷[1] 李泊[2] 王小强[2] 

机构地区：[1]鞍钢股份有限公司技术中心,辽宁鞍山114009 [2]鞍钢股份有限公司,辽宁鞍山114021

出　　处：《金属热处理》2016年第5期117-120,共4页Heat Treatment of Metals

摘　　要：用显微组织观察和力学性能检测方法,研究了不同退火温度和保温时间对4J36因瓦合金冷轧板组织和性能的影响。结果表明,随着退火温度的升高和保温时间的延长,4J36因瓦合金奥氏体晶粒逐渐长大,强度下降,塑性提高,合金在拉伸时发生韧性断裂。冷轧后的4J36合金在750℃进行退火,保温1 h后,其综合力学性能最佳,且晶粒细小均匀。Effects of annealing temperature and holding time on microstructure and mechanical properties of cold-rolled 4J36 invar alloy sheet were investigated by means of microstrueture analysis and mechanical property test. The results indicate that with the increase of annealing temperature and holding time, the austenite grains of the alloy grow up gradually, the strength is reduced but the plasticity is improved. The tensile fracture is ductile one. Comprehensive properties of the cold-rolled 4J36 invar alloy sheet are preferable when annealed at 750 ℃ for 1 h, meanwhile the grains are small and uniformity.

关 键 词：因瓦合金 退火 显微组织 力学性能 

分 类 号：TG146.15[一般工业技术—材料科学与工程]