Critical Strain for the Initiation of Dynamic Recrystallization in a Ni-Fe Base Alloy

机译：Ni-Fe基合金中动态再结晶引发的关键应变

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In order to quantitatively analyze the critical strain for the initiation of dynamic recrystallization in Ni-Fe-based Alloy 718, a series of uniaxial compression tests was conducted in the temperature range 927℃ - 1066℃ and the strain rate range 5 x 10~(-4) s~(-1) - 5 s~(-1) with varying initial grain size. The critical strains were graphically determined based on one parameter approach and microscopically confirmed. The effect of γ" (matrix-hardening phase) and δ (grain boundary phase) on the critical strain was simply discussed. The constitutive model for the critical strain of Alloy 718 was constructed using the experimental data obtained from the higher strain rate and the temperature range between 940℃ and 1040℃.

机译：为了定量分析Ni-Fe基合金718中引发动态再结晶的临界应变，在927℃-1066℃的温度范围和5 x 10〜（应变率）范围内进行了一系列单轴压缩试验。 -4）s〜（-1）-5 s〜（-1），且初始晶粒尺寸不同。基于一种参数方法以图形方式确定临界应变并通过显微镜确认。简单讨论了γ”（基体硬化相）和δ（晶界相）对临界应变的影响。利用从较高应变率和较高应变率获得的实验数据，构建了合金718的临界应变本构模型。温度范围为940℃至1040℃。

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《International Symposium on Designing, Processing and Properties of Advanced Engineering Materials(ISAEM 2003) pt.1; 20031105-20031108; Jeju Island; KR》|2003年|P.577-580|共4页
会议地点 Jeju(KR);Jeju(KR)
作者
Y.S. Na; Y.M. Rhyim; J.H. Lee; J.Y. Lee;
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作者单位

Materials Evaluation Group, Korea Institute of Machinery and Materials 66 Sangnam-dong, Changwon, Kyungnam 641-010, South Korea;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
critical strain; dynamic recrystallization; Ni-Fe base superalloy; alloy 718; one parameter approach;

机译：临界应变；动态再结晶； Ni-Fe基高温合金； 718合金；一参数法;

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Critical Strain for the Initiation of Dynamic Recrystallization in a Ni-Fe Base Alloy

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