标题:
回火温度对高强高韧钢组织及性能的影响Effects of Tempering Temperature on the Microstructures and Properties of Steel with High Strength and High Tenacity
作者:
韩庆艳, 吴建刚
关键字:
高强高韧钢, 回火温度, 组织, 性能Steel with High Strength and High Tenacity; Tempering Temperature; Structure; Properties
期刊名称:
《Metallurgical Engineering》, Vol.1 No.1, 2014-05-06
摘要:
经系列试验，研究了调质过程不同回火温度对高强高韧钢组织及性能的影响。试验表明：在560℃~580℃温度范围内，各项性能指标变化不大；在580℃~670℃温度范围内，随回火温度升高，强度与硬度降低，韧性提高。原因分析：抗拉强度和屈服强度先增大后减小，延伸率先减小后增大，这源于索氏体组织和碳化物的共同作用。 After series of tests, the effects of tempering temperature on the microstructures and properties of steel with high strength and high tenacity during tempering were discussed. The result shows that: various performance indicators show little change in the temperature range of 560?C - 580?C; with the increase of tempering temperature, strength and hardness decrease and toughness increases in the temperature range 580?C - 670?C. Reason Analysis: due to the combined action of Sorbite and Carbide, the tensile strength and yield strength first increase and then decrease, on the contrary, the toughness descends first and then increases.