高温合金盘锻件制备过程残余应力的演化规律及机制
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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
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Residual Stress Evolution and Its Mechanism During the Manufacture of Superalloy Disk Forgings
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BI Zhongnan 1,2(  ),QIN Hailong 1,2,DONG Zhiguo 3,WANG Xiangping 3,WANG Ming 3,LIU Yongquan 3,DU Jinhui 1,2,ZHANG Ji 1,2
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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]
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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 |
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