Microstructure and Mechanical Properties of 06Cr13Ni4Mo Steel Treated by Quenching–Tempering–Partitioning Process
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第2期
论文作者：Yuanyuan Song Jingping Cui Lijian Rong
文章页码：189 - 193
摘 要：A heat treatment process,quenching-tempering-partitioning（Q-T-P）,has been applied to a low carbon martensitic stainless steel 06Cr13Ni4 Mo.By using this process,ultrafine reversed austenite can be obtained at room temperature.The microstructures of the reversed austenite and the martensite matrix were characterized by transmission electron microscopy（TEM） and energy dispersive spectroscopy（EDS）in detail.The results show that the ultrafine reversed austenite is enriched in Ni resulting in the austenite stability at room temperature.Two new types of nano-scale carbide precipitates are found in the martensite matrix.Detailed analysis suggests that the two nano-scale precipitates can be identified asω phase and λ phase carbides,respectively.The orientation relationship between the ω phase and matrix is[011]α//[2110]ω and（211）α//（0110）ω,while that between the λ phase precipitate and matrix is[011]α//[0001]λ and（200）α//（1210）λ.For the present steel,the ultrafine reversed austenite and carbide precipitates obtained by Q-T-P treatment provide a good combination of high strength and toughness.
Yuanyuan Song1,2，Jingping Cui1，Lijian Rong1,2
1. Institute of Metal Research, Chinese Academy of Sciences2. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences
摘 要：A heat treatment process,quenching-tempering-partitioning（Q-T-P）,has been applied to a low carbon martensitic stainless steel 06Cr13Ni4 Mo.By using this process,ultrafine reversed austenite can be obtained at room temperature.The microstructures of the reversed austenite and the martensite matrix were characterized by transmission electron microscopy（TEM） and energy dispersive spectroscopy（EDS）in detail.The results show that the ultrafine reversed austenite is enriched in Ni resulting in the austenite stability at room temperature.Two new types of nano-scale carbide precipitates are found in the martensite matrix.Detailed analysis suggests that the two nano-scale precipitates can be identified asω phase and λ phase carbides,respectively.The orientation relationship between the ω phase and matrix is[011]α//[2110]ω and（211）α//（0110）ω,while that between the λ phase precipitate and matrix is[011]α//[0001]λ and（200）α//（1210）λ.For the present steel,the ultrafine reversed austenite and carbide precipitates obtained by Q-T-P treatment provide a good combination of high strength and toughness.
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