热处理过程流场-温度场-组织场-应力场耦合模拟研究

发布时间：2018-06-27 08:44

  本文选题：多场耦合模拟 + 数值模拟　； 参考：《金属热处理》2017年08期

【摘要】：建立了有限元-有限体积耦合的热处理流场、温度场、组织场、应力场数值模型,并采用真空高压气淬工艺对该模型进行了验证。模拟结果与实测不同位置的冷却曲线和显微组织吻合较好。本研究扩展了热处理模拟的求解域,克服了传统淬火模拟需预先获得淬火介质换热系数的局限。模拟可获得工件热处理后的显微组织分布和残余应力分布,进而为热处理工艺的制定提供参考。
[Abstract]:A finite element finite volume coupled heat treatment flow field, temperature field, microstructure field and stress field are established, and the model is verified by vacuum high pressure gas quenching process. The simulation results are in good agreement with the cooling curves and microstructure measured at different locations. This study extends the solution domain of heat treatment simulation and overcomes the limitation that the traditional quenching simulation needs to obtain the heat transfer coefficient of quenching medium in advance. The microstructure distribution and residual stress distribution of workpiece after heat treatment can be obtained by simulation.
【作者单位】： 上海交通大学材料科学与工程学院材料改性与数值模拟研究所;
【基金】：“高档数控机床与基础制造装备”科技重大专项(2012ZX04012011)
【分类号】：TG151
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本文编号：2073348