摘要
对大跨度桥梁用热轧钢拉杆进行低温淬回火和高温淬回火处理,对比分析了3种钢拉杆的力学性能与显微组织。结果表明,相比热轧40 Cr棒材,经高温淬回火钢拉杆的强度和冲击功得到较大提高,而断后伸长率略有降低。
The microstructure and mechanical properties of 40 Cr rod after low temperature and high temperature quenching and tempering were studied.The results show that the strength and impact energy of the 40 Cr rod increases after high temperature quenching and tempering process,while the elongation after fracture decreases.
出处
《铸造技术》
CAS
北大核心
2016年第7期1374-1376,共3页
Foundry Technology
关键词
钢拉杆
热处理
强度
塑性
steel rod
heat treatment
strength
plasticity
