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在ML-100型销-盘式磨料磨损试验机上,通过不同钢种之间的对比试验,研究了奥氏体中锰钢(BTW钢)石英砂磨料及煤矸石磨料下的磨损性能,并采用SEM分析了其磨损机制。结果表明,在高硬度的石英砂磨料中,BTW钢加工硬化明显,有效硬化层深度达900μm,耐磨性能优于其他钢种,而在质地较软的煤矸石磨料中,其耐磨性降低;BTW钢在不同磨料下的磨损机制均为犁削,但形貌差异较大,石英砂磨料下磨损表面较为均匀,犁沟深度较浅、宽度较窄,脊缘部分较薄,脊缘在反复磨损中断裂成屑的数量较多,而煤矸石磨料中,犁沟存在于整个磨损表面且变形较小,几乎没有发现切削存在。
On the ML-100 pin-disc abrasion tester, the wear behavior of austenitic manganese steel (BTW steel) quartz sand abrasive and coal gangue abrasive was studied by comparing the different steel grades. SEM analysis of the wear mechanism. The results show that the BTW steel hardens significantly in the high hardness quartz sand abrasive, the depth of the effective hardened layer reaches 900μm, and the wear resistance is better than other steel grades. However, the wear resistance of the BTW steel in the soft coal gangue abrasive decreases ; The wear mechanism of BTW steel under different abrasives is plowing, but the morphology is quite different. The abrasion surface under the quartz sand abrasive is relatively uniform, the depth of the furrow is shallow, the width is narrower, the ridge part is thinner, Repeated wear and tear in the fracture into a larger number of debris, and coal gangue abrasives, furrows exist in the entire wear surface and less deformation, almost no cutting found.