GH98合金的热加工性能  

Hot Workability of Superalloy GH98

作　　者：蒙肇斌[1] 王延庆[1] 尹法杰[1] 乔雪璎[1] 张旭瑶[1] 

机构地区：[1]钢铁研究总院高温材料研究所,北京100081

出　　处：《钢铁研究学报》2003年第6期54-57,63,共5页Journal of Iron and Steel Research

摘　　要：通过在Gleeble1500热模拟试验机上进行的压缩和拉伸试验,研究了GH98合金的热加工性能,并对其变形组织进行了金相观察。试验结果表明,GH98合金的热加工变形抗力很高,欲改善其热加工性能,加热温度的选择及控制尤为关键。从本试验结果来看,GH98合金的加热温度应严格控制在1000～1200℃,这一点已在实际的锻造和轧制过程中得到验证。By means of hot compression and tension test on Gleeble 1500 equipment, the hot workability of superalloy GH98 has been studied, and the microstructure of hot compression specimen has been investigated. It shows that the deformation stress of GH98 is very high in comparison with that of other superalloys. In order to improve its hot workability, the hotworking temperature range must be strictly controlled. The optimum hotworking temperature range of GH98 should be 1 000-1 200 ℃, which has been proved by forging and rolling process.

关 键 词：高温合金 GH98 热加工 热模拟 组织 性能 

分 类 号：TG132.3[一般工业技术—材料科学与工程]