淬火温度对超高强度钢力学性能的影响

物理测试, 2009, 27(1): 34-0.

淬火温度对超高强度钢力学性能的影响

1.1.昆明理工大学材料与冶金工程学院，云南昆明650093；2.钢铁研究总院结构材料研究所，北京100081

1.1.School of Material and Metallurgical Engineering，Kunming University of Science and Technology， Kunming 650093,Yunnan,China；2.Institute for Structural Materials， Central Iron and Steel Research Institute， Beijing 100081，China

关键词：淬火温度 , undissolved carbides , mechanical properties

Effect of Quenching Temperature on Mechanical Properties of Ultra High Strength Steel

LU Yan , SU Jie , XIE Gang

Keywords： quenching temperature , 未溶碳化物 , 力学性能

研究了890~1040 ℃加热淬火对超高强度钢未溶碳化物及力学性能的影响。结果表明：淬火加热温度上升到约1010 ℃，其奥氏体晶粒的长大还没有使板条马氏体束尺寸增加到明显降低钢的强度和韧性时，未溶碳化物MC含量却显著下降，使实验钢的冲击韧性达到峰值。

Effect of temperature used for quenching at 890～1040 ℃ on undissolved carbides and mechanical properties of UltrahighStrength steel has been investigated.The results have indicated that impact toughness of experimental steel reached peak value as content of undissolved MCcarbides is significantly decreased, and increase of lath martensite packets size did not lead to a marked decrease in strength and toughness of steel when austenitizing temperature increased to about 1010 ℃.

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