摘要
研究了钒含量（0．28％和0．50％，质量分数，下同）的变化对Cr8M02SiV钢组织和性能的影响。结果表明，随着钒含量的增加，一次碳化物尺寸增大，淬火峰值硬度向高温区移动，钒含量0．5％的Cr8M02SiV钢的淬火晶粒尺寸明显小于钒含量0．28％的Cr8M02SiV钢。经1040℃淬火、180～520℃回火后，随着钒含量的升高，Cr8M02SiV钢的二次硬化峰值硬度以及二次硬化峰之前的回火硬度均明显提高。钒对提高Cr8M02SiV钢的淬火温度和二次硬化效应有利。
Effect of Changes in V content （0.28% V and 0.50 % V） on structure and mechanical property of steel CrSMo2SiV was investigated. Results show that with increasing V content the size of primary carbide size in steel becomes larger and the peek hardness of quenched steel moves to higher temperature region and 0.5 % V of steel Cr8Mo2SiV quenching in the grain size is significantly less than 0.28% V steel Cr8Mo2SiV. With increasing V content the peak hardness of secondary hardening steel as well as the tempering hardness before secondary harden- ing peak of steel Cr8Mo2SiV quenched at 1040 ℃and tempered at 180 to 520 ℃ obviously increase. The Vanadium element is beneficial to improve the quenched temperature and secondary hardening ability of steel CrSMo2SiV.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2014年第3期35-39,45,共6页
Journal of Iron and Steel Research
