溶液温度对高γ'体积分数粉末冶金高温合金拉伸性能的影响

Effects of Solution Temperature on Tensile Properties of a High γ' Volume Fraction P/M Superalloy.

作者信息

Jia Jian, Zhang Yiwen, Tao Yu, Yan Ting, Ji Hongyan

机构信息

High Temperature Materials Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China.

Gaona Aero Material Co., Ltd., Beijing 100081, China.

出版信息

Materials (Basel). 2022 Aug 11;15(16):5528. doi: 10.3390/ma15165528.

DOI:10.3390/ma15165528

PMID:36013663

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9410343/

Abstract

To meet the pressing needs concerning the optimization of the performance of powder metallurgy (P/M) superalloys for turbine disc applications, the effects of solution temperature on a novel high γ' volume fraction P/M superalloy FGH 4107 were investigated. The results indicated that the size of the γ' precipitates decreased dramatically as the solution temperature increased from 1160 to 1200 °C. Theoretical calculations showed that the precipitation strengthening played a dominant role in enhancing the strength of the high γ' volume fraction P/M superalloy, and a higher solution temperature was beneficial for the modification of the γ' phase distribution during the following cooling and aging process.

摘要

为满足涡轮盘应用中粉末冶金（P/M）高温合金性能优化的迫切需求，研究了固溶温度对新型高γ'体积分数P/M高温合金FGH 4107的影响。结果表明，当固溶温度从1160℃升高到1200℃时，γ'相析出物尺寸急剧减小。理论计算表明，析出强化在提高高γ'体积分数P/M高温合金强度方面起主导作用，较高的固溶温度有利于在随后的冷却和时效过程中改善γ'相分布。