对具有不同微观结构的中碳低合金钢的冲击磨损性能的影响
Ziduan Wang1, Changhong Cai2,3,4
1Brunel London School, North China University of Technology, Beijing 100144, China.
Materials (Basel, Switzerland)
|December 31, 2025
概括
合金和优化的热处理显著提高中碳低合金钢的耐磨性. 钢钢化提供了最佳的机械性能,而特定的钢构则通过增强的工作硬化和减少应力来最大限度地降低磨损.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 部落学 (tribology) 是一个学科.
背景情况:
- 中碳低合金钢对于苛刻的应用至关重要.
- 了解磨损机制对于提高材料性能至关重要.
- 优化微观结构和残余应力是提高耐磨性的关键.
研究的目的:
- 研究 (Si) 含量对中碳低合金钢的冲击磨损磨损的影响.
- 为了评估不同的热处理工艺:火和化 (QT), austempering,和火和分区 (QP).
- 为了将微观结构特征和残余应力与磨损行为相关联.
主要方法:
- 对含量影响的系统研究.
- 优化QT, austempering和QP热处理的应用.
- 微观结构的表征 (例如,保留了奥氏体,贝尼特/马丁石结构,碳化物).
- 机械性能测试 (强度,硬度,可塑性,性).
- 冲击磨损磨损测试以确定质量损失.
主要成果:
- 添加增加了保留的奥氏体 (RA) 体积分数和稳定性,精炼了微观结构,并抑制了碳化物.
- 软化提供了强度,硬度,柔性和性的最佳组合.
- 钢2B-300显示了由于高工作硬化,深度应变硬化层和低剩余拉伸应力而导致的最低磨损损.
- QT和QP工艺表现出较高的磨损损失,与高残余拉力应力和较低的RA稳定性有关.
结论:
- 合金和适当的热处理有效地调整微观结构和残余应力,以获得优越的冲击磨损耐磨性.
- 这种方法有利于采矿和矿物加工的组件.
- 该研究为优化Si含量和热处理提供了一个框架,以提高这些钢的磨损性能.
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