摘要
本文研究了锰铬奥氏体钢的加工硬化能力及耐磨性。实验证明,较低的碳含量(C1.10～1.20％)及铬的加入(Cr2.0～2.5％)使奥氏体层错能降低,在形变时形成大量形变孪晶,孪晶带薄,孪晶间距小并且有ε马氏体出现。这是钢的强化和加工硬化能力提高的主要原因。在冲击载荷作用下,锰铬奥氏体钢的加工硬化速度快,可以迅速形成高硬度的稳定的硬化层,抗冲击磨料磨损的能力大幅度提高。模拟磨损试验和工业验证都表明,锰铬奥氏体钢较传统的Mnl3的加工硬化能力和耐磨性有明显提高,在冲击磨料磨损条件下可取代Mn13,有广阔的工业应用前景。
This paper reports the deformation strengthening and wear resistance of manganese-chrom-ium austenitic steel. The experimental results show that low content, of carbon (C1.10～1.20%)and the addirion of chromium (Cr 2.0～2.5%) decieased stacking fault energy of austenite. The formation of a great deal of thin deformation twin, short distance between twins andformation of ε martensite are the main reason of high ability of deformation strengthening.Under impact load surface layer with stable high hardness forms rapidly. The ability of anti-impact abrasive wear increases obviously. Experiment of imitation and experiment under indu-strial condition proves that, the wear reeistance of this steel is much higher than that of tra-ditional Hadfield steel and the latter can be replaced by the former successfully.
出处
《钢铁》
CAS
CSCD
北大核心
1989年第6期49-54,共6页
Iron and Steel
