摘要
通过改变不同的固溶工艺参数对HT700镍铁基高温合金材料力学性能进行研究,并借助金相显微镜、扫描电子显微镜等表征手段,分析固溶工艺对其组织及力学性能的影响。结果表明:随着固溶时间的提高,该材料的室温-拉伸强度越高,但在室温下的断后伸长率呈下降趋势;当固溶温度超过1150℃,保温时间超过50 h时,金相组织中的枝晶消除较彻底。
The mechanical properties of HT700 nickel-iron-based superalloy were studied by changing different solution process parameters,and the effects of solution process on its microstructure and mechanical properties were analyzed by means of metallographic microscopy and scanning electron microscopy.The results show that with the increase of solution time,the tensile strength of the material increases at room temperature,but the elongation after break decreases at room temperature.When the solution temperature exceeds 1150℃and the holding time exceeds 50 h,the dendrite in the metallographic structure is completely eliminated.
作者
纳学洋
穆晓彪
李永新
李文定
李沛
马斌
冯周荣
袁勇
NA Xueyang;MU Xiaobiao;LI Yongxin;LI Wending;LI Pei;MA Bin;FENG Zhourong;YUAN Yong(Kocel Steel Foundry Co.,Ltd.,Yinchuan 750021,Ningxia China;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710054,Shaanxi China)
出处
《中国铸造装备与技术》
CAS
2024年第5期20-23,共4页
China Foundry Machinery & Technology
