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GH4145合金热变形行为研究
张伟红; 孙文儒; 华培涛; 李胜超; 宋金贵; 宋玺玉; 刘岩; 胡壮麒
2011-08
Conference Name第十二届中国高温合金年会
Source Publication第十二届中国高温合金年会论文集
Conference Date2011-08
Conference Place成都
Abstract对GH4145镍基高温合金在温度为950~1200℃、应变速率为0.5~50 s-1范围内的热变形行为进行了系统研究,分析了合金的真应力-真应变曲线、变形组织,建立了合金热变形本构方程和加工图。结果表明:应变在0.3左右流变应力达峰值,应变大于0.7时,流变应力进入稳态阶段;相同应变条件下,晶粒尺寸随应变速率增加而减小,功率耗散因子峰值在应变速率50 s-1、温度1100~1150℃范围内;合金稳态成形温度应大于1050℃。
description.department中国科学院金属研究所,辽宁 沈阳 110016;中航工业黎明航空发动机(集团)公司,辽宁 沈阳 110043;
KeywordGh4145 热压缩 本构方程 组织 热加工图
Funding Organization中国金属学会
Language中文
Document Type会议论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71067
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
张伟红,孙文儒,华培涛,等. GH4145合金热变形行为研究[C],2011.
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