胡锋,王帅,成林,梁灿棉,张永康

• 1:广东工业大学机电工程学院
• 2:广东星联精密机械有限公司
• 3:武汉科技大学高性能钢铁材料及其应用省部共建协同创新中心

摘要(Abstract)：

研究了不同Ti含量(0.03 mass%和0.15 mass%)的耐磨钢中Ti的析出行为及其对冲击磨损性能的影响。结果表明：低Ti含量钢中的大尺寸析出相占比明显低于高Ti含量钢；亚微米级/微米级(Ti, Mo)N析出相在温度较高的液相或者液/固两相区析出，多呈尖锐棱角的不规则多边形或矩形；纳米级(Ti, Mo)(C,N)析出相在温度较低的固相区析出，多为细小的近球状。低Ti含量钢的冲击磨损性能优于高Ti含量钢，亚微米级/微米级(Ti, Mo)N析出相使材料断裂的临界应变能降低，基体和析出相分离所需的应力下降，容易产生微裂纹，导致在冲击磨损过程产生大量犁削；纳米级(Ti, Mo)(C,N)析出相使基体的应变能低于裂纹扩展所需要的界面能，能够阻止在冲击磨损过程中产生的切削，使得耐磨性增加。

关键词(KeyWords)： 耐磨钢;Ti合金化;析出相;冲击磨损;磨损机制

Abstract:

Keywords:

基金项目(Foundation): 中国博士后科学基金(2021M700875)

作者(Author): 胡锋,王帅,成林,梁灿棉,张永康

DOI: 10.13289/j.issn.1009-6264.2022-0345

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