奥氏体中锰钢的磨料磨损性能  

Abrasive wear properties of medium manganese austenitic steel

作　　者：陈辉[1,2] 赵冬[1,2] 王庆良[1] 强颖怀[1] 王斐[1] 

机构地区：[1]中国矿业大学材料科学与工程学院,江苏徐州221116 [2]徐州工程学院江苏省大型工程装备检测与控制重点建设实验室,江苏徐州221110

出　　处：《金属热处理》2017年第4期42-46,共5页Heat Treatment of Metals

基　　金：国家科技支撑计划(2013BAEL3B00);江苏省大型工程装备检测与控制重点建设实验室开放课题(JSKLEDC201403)

摘　　要：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。Wear performance of medium manganese austenitic steel（ BTW） under different abrasion conditions（ quartz sand and gangue）was studied by comparing them with other steels on ML-100 pin-disk abrasive wear testing machine and its wear mechanism was analyzed by using SEM. The results show that BTW steel has obvious work hardening performance in the high hardness quartz sand abrasion with 900 μm effective work hardening layer and the wear resistance is better than other steels. But in gangue abrasion,the wear resistance performance of BTW steel is reduced contrasted to quartz sand condition. The surface failure mechanism of BTW steel under different conditions is plowing and cutting,but the surface worn morphology varies at different abrasion conditions. In the quartz sand condition,the depth of plow is shallow,width is narrow,ridge is thin and the ridge breaks into many debris during the wear process. In the gangue condition,the plow exists in the whole worn surface and the plastic deformation is small,and there is no cutting in the worn surface.

关 键 词：中锰钢 磨料磨损 磨损性能 磨损机制 

分 类 号：TH142.1[一般工业技术—材料科学与工程]