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Analytical Model to Compare and Select Creep Constitutive Equation for Stress Relief Investigation during Heat Treatment in Ferritic Welded Structure
Metals ( IF 2.9 ) Pub Date : 2020-05-23 , DOI: 10.3390/met10050688
Mengjia Hu , Kejian Li , Shanlin Li , Zhipeng Cai , Jiluan Pan

The one-dimensional analytical model was promoted to help select the creep constitutive equation and predict heat treatment temperature in a ferritic welded structure, along with neglecting the impact of structural constraint and deformation compatibility. The analytical solutions were compared with simulation results, which were validated with experimental measurements in a ferritic welded rotor. The as-welded and post weld heat treatment (PWHT) residual stresses on the inner and outer cylindrical surfaces were measured with the hole-drilling method (HDM) for validation. Based on the one-dimensional analytical model, different effects of Norton and Norton-Bailey creep constitutive equation on stress relief during heat treatment in a ferritic welded rotor were investigated.

中文翻译:

铁素体焊接结构热处理过程中应力释放研究的蠕变本构方程的比较和选择分析模型

推广了一维分析模型,以帮助选择蠕变本构方程并预测铁素体焊接结构中的热处理温度,同时忽略了结构约束和变形相容性的影响。将分析解决方案与模拟结果进行了比较,模拟结果在铁素体焊接转子中通过实验测量得到了验证。使用钻孔方法(HDM)测量内外圆柱面上的焊接后和焊后热处理(PWHT)残余应力,以进行验证。基于一维分析模型,研究了Norton和Norton-Bailey蠕变本构方程对铁素体焊接转子热处理过程中应力释放的不同影响。
更新日期:2020-05-23
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