【摘要】 ３Ｃｒ２Ｗ８Ｖ钢渗硼后热疲劳抗力的研究于长山刘喜明赵宇邬占田（吉林工学院）本文收到日期：１９９７年３月１３日初稿，１９９７年６月１７日修改稿本文联系人：于长山，男，１９３８年３月生，副教授，吉林省长春市（１３００１１）吉林工学院热处理教研室吉林省科技...更多还原

【Abstract】 The paper dealed with reheated eutectic transformation and heat fatigue resistance for boronized 3Cr2W8V steel. The experiments showed, boronized steel is heated to over 1080℃, boronized layer will generate a eutectic transformation that will be first intersection between Fe 2B and γ Fe, then developed toward to both sides. After boronized, steel is heated to 1050℃, oil cooled and tempered at 620℃. Surface bornized layer is perfect, and temper martensite is inside transition layer. Thus, there existed high hardness and high wear resistance on workpiece surface, high strength and toughness in workpiece core. Taking the complex strengthening measurment, heat fatigue resistance for 3Cr2W8V steel will be raised markedly.更多还原