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淬火+回火处理对Q345B铸坯组织与性能的影响
发表时间：2015-12-15 浏览量：1973 下载量：477
| 全部作者： | 王彪，陈士富，高涵 |
| 作者单位： | 东北大学秦皇岛分校资源与材料学院 |
| 摘 要： | 观察并研究了Q345B钢在900~1 060℃淬火+450℃回火的热处理工艺对钢性能的影响。热处理后，对钢样分别进行显微观察、拉伸性能测试、硬度测试和耐蚀性测试，分析钢性能的改变。结果表明，淬火处理显著增强了钢的强度和硬度，经过450℃回火后，塑韧性也得到了一定的回升；淬火温度在980~1 020℃时有较好的耐蚀性。综合考虑强度、硬度、塑韧性和加热温度，以及生产实际，对钢样进行940℃淬火+450℃回火的热处理工艺，能使钢材获得优良的综合性能，具有很大的经济意义和现实意义。 |
| 关 键 词： | 金属材料；Q345B钢；淬火+回火处理；组织与性能；最佳工艺 |
| Title： | Effects of quenching and tempering process on microstructure and properties of Q345B casting |
| Author： | WANG Biao, CHEN Shifu, GAO Han |
| Organization： | School of Resources and Materials, Northeastern University, Qinhuangdao Branch |
| Abstract： | This paper mainly discusses the effects of heat treatment process of Q345B steel at 900-1 060℃ quenching +450℃ tempering process on the performance of steel. After heat treatment, the steel samples of different treatments were taken to observation and test to get the statistical analysis of test results by changing heat treatment on the properties of the steel. Results show that the quenching process enhance the strength and hardness of the steel significantly. After tempering at 450℃, the plasticity and toughness of steel has also been picked up. The steel has good corrosion resistance when the quenching at 980-1 020℃. Considering the strength, hardness, plasticity and toughness, and the heating temperature, production practice, the heat treatment process of quenching at 940℃+450℃ tempering of steel samples, can make the steel obtain excellent comprehensive properties, which is of great economic significance and practical significance. |
| Key words： | metallic materials; Q345B steel; quenching and tempering process; microstructure and properties; the optimum process |
| 发表期数： | 2015年12月第23期 |
| 引用格式： | 王彪，陈士富，高涵. 淬火+回火处理对Q345B铸坯组织与性能的影响[J]. 中国科技论文在线精品论文，2015，8（23）：2448-2453. |
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