应力与相变相互作用对马氏体淬火残余应力的影响

本文进行了有关钢在马氏体淬火过程中应力与相变相互作用的实验研究，在此基础上提出了一种预测钢的马氏体淬火残余应力的较完整的数学模型。根据实测的材料参数用有限元方法对２６Ｃｒ２Ｎｉ４ＭｏＶ钢圆筒形试件的淬火过程进行了计算分析，着重考察了相变塑性和应力诱导相变对残余应力形成的影响。结果表明，由本模型给出的残余应力预测值与实测值吻合较好，而不考虑相变塑性的模型实际上是不适用的，忽略应力诱导相变则倾向于在较大程度上低估淬火后的残余应力

EFFECT OF STRESS-PHASE TRANSFORMATION INTERACTIONS ON RESIDUAL STRESSES DURING MARTENSITIC QUENCHING OF STEEL

In this paper, the experiments on stress-phase transformation interactions during martensitic quenching of steel are conducted. A more complete model incorporating these factors is then presented and calculations of the martensitic quenching of a 26Cr2Ni4MoV steel cylinder have been made using the finite element method,during which transformation plasticity and stress induced transformation have been considered. The results of the calculations are compared with those obtained by experiments and the validity of the model and the effect of stress-phase transformation interactions on the residual stresses evolution are discussed.