通过显微组织观察、拉伸试验、磁性能试验等方法分析了热处理工艺对一种新型节镍奥氏体无磁钢组织和性能的影响。结果表明：经过1150℃×1h固溶＋750℃×4h时效处理后，该钢中的析出相细小弥散，具有良好的力学性能和较低的磁导率；其屈服强度为637MPa，抗拉强度为1134MPa，伸长率为36．8％，磁导率为1．254×10^-6H·m^-1。
The effect of heat treatment on microstructure and properties of a new-typed low nickel austenitic nonmagnetic steel were analyzed by observing microstructure, tensile testing and magnetic property testing. The results show that the precipitation phase in the steel was fine and dispersive after solid solution at 1 150 ℃ for 1 h and aging at 750℃ for 4 h, the tested steel could own good mechanical properties and low permeability, and the yield strength was 637 MPa, tensile strength was 1 134 MPa, elongation was 36.8% and permeability was 1. 254 × 10^-6 H · m ^-1.
参考文献
| [1] | 赵朴.化学成分和固溶温度对1Cr17Mn9Ni4N不锈钢组织和性能的影响[J].钢铁研究学报,2003(03):21-24. |
| [2] | 李志,高谦,何冰,高登攀.节镍型奥氏体不锈钢1Cr17Mn9Ni4N的组织和力学性能[J].钢铁研究学报,2005(02):68-71. |
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