【摘要】 本文利用透射电子显微术研究18Ni马氏体时效钢中逆转变奥氏体的形成;对不同时效制度下的逆转变奥氏体的分布、形貌、含量及对性能的影响进行了测定和探讨;并对深冲成型工艺提出了最佳的热处理制度。更多还原

【Abstract】 The formation of reverse austenite in 18Ni (250 grade) maraging steel was studied with tran-smission electron microscopy. The distribution, morphology, amount of reverse austenite under diff-erent maraging regimes and its effect on properties were determined and discussed. An optimumregime of heat treatment for deepdrawing is proposed.更多还原