形变能能够诱发马氏体相变。形变马氏体由于形成温度高,产生滑移分切应力小,可以实现形态控制,具有高的强韧性。 钢在渗碳和碳氮共渗时其渗层的诱发相变特征不同,前者表层及次层均发生了马氏体相变,使渗层脆化;后者,由于氮的渗入,次层相变减弱,保留了残留奥氏体松弛应力和延缓裂纹扩展的作用。 Deformation can induce martensitic transformation. Deformation of martensite due to the formation of high temperature, resulting in slitting shear stress is small, can achieve morphology control, with high strength and toughness. Steel in the carburizing and carbonitriding infiltration of the phase transition induced by the different characteristics of the former surface layer and sub-martensitic transformation occurred, so that the infiltration layer embrittlement; the latter, due to the infiltration of nitrogen, sub-layer The phase transformation weakened, retained the residual austenite relaxation stress and delayed the role of crack growth.