高温合金盘锻件制备过程残余应力的演化规律及机制
毕中南1,2(),秦海龙1,2,董志国3,王相平3,王鸣3,刘永泉3,杜金辉1,2,张继1,2
Residual Stress Evolution and Its Mechanism During the Manufacture of Superalloy Disk Forgings
BI Zhongnan1,2(),QIN Hailong1,2,DONG Zhiguo3,WANG Xiangping3,WANG Ming3,LIU Yongquan3,DU Jinhui1,2,ZHANG Ji1,2

图14. GH4169合金720 ℃保温时效过程中的晶格常数变化及其与宏观体积变化的关联[38]

Fig.14. Evolution of lattice parameter and volume shrinkage of GH4169 alloy during ageing process[38](a) evolution of {200}γ peak and {004}γ peak with ageing time(b) evolution of {200}γ and {004}γ interplanar spacing(c) shrinkage strains during thermal ageing at 720 ℃ measured by neutron diffraction and dilatometry during stress-free ageing