CAJ | 학술논문

在M2000摩擦磨损试验机上，研究以煤矸石为磨料时热轧高锰钢Mn13冲滚耦合的磨料磨损性能，利用XRD和SEM分析其组织转变及磨损机制。实验结果表明，在较高冲滚载荷下，热轧Mn13钢表现出更好的抗冲滚磨料磨损性能；冲滚磨料磨损表面存在一定厚度的硬化层，且随冲滚载荷的增加，磨损面硬度增加，硬化层厚度增大，形变孪晶和马氏体相变是其加工硬化和耐磨损性能改善的主要原因；低载荷冲击时，磨损机制主要表现为凿削磨损并伴随犁沟切削磨损，较高载荷冲击时，磨损机制凿削磨损和犁沟划伤过渡到疲劳剥落和凿削磨损。
재M2000마찰마손시험궤상，연구이매안석위마료시열알고맹강Mn13충곤우합적마료마손성능，이용XRD화SEM분석기조직전변급마손궤제。실험결과표명，재교고충곤재하하，열알Mn13강표현출경호적항충곤마료마손성능；충곤마료마손표면존재일정후도적경화층，차수충곤재하적증가，마손면경도증가，경화층후도증대，형변련정화마씨체상변시기가공경화화내마손성능개선적주요원인；저재하충격시，마손궤제주요표현위착삭마손병반수리구절삭마손，교고재하충격시，마손궤제착삭마손화리구화상과도도피로박락화착삭마손。
The impact?rolling abrasive wear properties of hot rolling high manganese steel of Mn13 were studied under the condition of coal gangue abrasive by the experimental machine of M2000. XRD and SEM were used to investigate the structural transformation and wear mechanism of Mn13 steel. The results show that the hot rolled steel Mn13 reveals the better resistance to impact?rolling abrasive wear properties under the high impact loads. The hardened layer with a certain thickness is formed in worn surface.The hardness and thickness of hardened layer are improved with the increasing of im?pact loads.The deformation twinning and martensite phase transformation are the main reasons to improve the work harden?ing and wear resistance of hot rolling high manganese steel of Mn13.At the low impact loads,the drilling and plowing wear are the main wear mechanism,and at the high impact loads,the wear mechanism changes to fatigue fracture and drilling wear.