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| 1300 MPa级高强度螺栓钢 | |
| 引用本文： | 惠卫军,董瀚,王毛球,陈思联,翁宇庆,赵秀明. 1300 MPa级高强度螺栓钢[J]. 钢铁, 2002, 37(3): 37-42 |
| 作者姓名： | 惠卫军 董瀚 王毛球 陈思联 翁宇庆 赵秀明 |
| 作者单位： | 1. 钢铁研究总院 2. 中国金属学会 3. 南京依维柯汽车公司 |
| 基金项目： | 国家重点基础研究发展规划项目(973)"新一代钢铁材料的重大基础研究"资助项目(G1998061503) |
| 摘 要： | 在常用高强度螺栓钢42CrMo的基础上研究开发出一种强度级别更高的高强度螺栓钢42CrMoVNb。试验结果表明,新开发钢的奥氏体晶粒长大趋势明显小于42CrMo钢,具体微细的显微组织,在约550℃以上温度回火时析出合金碳化物而产生二次硬化,具有良好的强韧性配合;其耐延迟断裂性能,缺口敏感性和冷加工性能均优于42CrMo钢,用新开发钢试制的高强度螺栓已通过了汽车道路考核试验。 |
| 关 键 词： | 高强度螺栓钢 力学性能 延迟断裂 |
NEW HIGH STRENGTH STEEL FOR BOLTS WITH TENSILE STRENGTH OVER 1 300 MPa |
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| HUI Weijun DONG Han WANG Maoqiu CHEN Silian. NEW HIGH STRENGTH STEEL FOR BOLTS WITH TENSILE STRENGTH OVER 1 300 MPa[J]. Iron & Steel, 2002, 37(3): 37-42 | |
| Authors: | HUI Weijun DONG Han WANG Maoqiu CHEN Silian |
| Abstract: | This paper introduces the newly developed high strength steel for bolts with tensile strength over 1300 MPa. It's shown that the micro alloy steel has lower austenite grain growth tendency and therefore finer microstructure, significant secondary hardening at higher tempering temperature and good strength and toughness combination The steel also has higher delayed fracture resistance, notch sensitivity and cold heading ability than that of the conventional steel 42CrMo One IVECO minibus, assembled with the bolts made of this new high strength steel has passed reliability running test recently |
| Keywords: | high strength bolt steel mechanical property delayed fracture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |