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首页> 外文期刊>Journal of Materials Engineering and Performance >Thermoelastoplastic and Residual Stress Analysis during Induction Hardening of Steel
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Thermoelastoplastic and Residual Stress Analysis during Induction Hardening of Steel

机译：钢感应淬火过程中的热弹塑性和残余应力分析

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摘要

A theoretical model was developed to predict the thermoelastoplastlc and residual stresses developed in a round steel bar during induction hardening. For numerical analysis, a quasi-static, uncoupled thermoe-lastoplastic solution based on the hyperbolic sine law of Tien and Richmond was formulated. The properties of the material were assumed to be temperature dependent. The phase transformation was considered in the numerical calculation, and the results were compared with the case where phase transformation is avoided. The cylinder was heated rapidly; once the temperature of the outer surface exceeded the transformation temperature, the cylinder was rapidly cooled. Accordingly, in the numerical calculation, only the area at the vicinity of the outer surface was assumed to transform to martensite. The results showed that the compressive residual stresses at the vicinity of the outer surface were considerably higher than the tensile stresses at the center.
机译：建立了理论模型来预测感应淬火过程中圆钢中的热弹性体和残余应力。为了进行数值分析，根据Tien和Richmond的双曲正弦定律制定了准静态，非耦合热弹塑性解。假定材料的特性与温度有关。在数值计算中考虑了相变，并将结果与​​避免相变的情况进行了比较。圆筒被迅速加热;一旦外表面的温度超过转变温度，就将圆柱体迅速冷却。因此，在数值计算中，仅假设外表面附近的区域转变为马氏体。结果表明，外表面附近的压缩残余应力明显高于中心处的拉伸应力。

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