同添加对Sn-11Sb-6Cu巴比特合金的微观结构和机械性能的影响
Zhan Cheng1,2, Meng Wang1, Bo Wang1
1Ningbo Intelligent Machine Tool Research Institute Co., Ltd., China National Machinery Institute Group, Ningbo 315700, China.
Materials (Basel, Switzerland)
|November 27, 2024
概括
将 (Co) 添加到SnSb11Cu6巴比特合金中,可以增强微观结构和硬度. 观察到1.5%重量的Co具有最佳性能,包括更好的拉伸和压力强度,从而在表面应用中产生良好的金结合.
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:
- 巴比特合金对于轴承应用至关重要.
- 了解合金元素对巴比特合金性能的影响对于性能优化至关重要.
研究的目的:
- 研究 (Co) 添加对SnSb11Cu6巴比特合金微观结构和机械性能的影响.
- 为了评估共同修改的巴比特合金的磨损和摩擦特性.
- 评估优化的巴比特合金在冷金属转移 (CMT) 表面的性能.
主要方法:
- 通过感应化合成具有不同CO含量 (0-2%) 的SnSb11Cu6合金.
- 使用光学显微镜 (OM),扫描电子显微镜 (SEM),能量分散X射线光谱 (EDS) 和X射线衍射 (XRD) 的微结构分析.
- 机械性能测试包括拉力,压力和布林尔硬度测试,以及磨损和摩擦评估.
主要成果:
- 添加精细化了微观结构并促进了统一性,引入了Co3Sn2相.
- 拉力和压力强度最初随着含量增加而增加,然后下降,而布里内尔硬度则持续上升.
- 观察到最优的摩擦性能高达1.5重量%Co;更高的含量导致显著恶化.
- SnSb11Cu6-1.5Co的CMT表面表现出密集的界面微结构,良好的金结合,以及与钢基板的元素扩散.
结论:
- 1.5重量%的是最佳的提高SnSb11Cu6巴比特合金的综合性质.
- 添加可以改善微观结构,硬度和机械强度,同时影响磨损和摩擦行为.
- 优化的巴比特合金在CMT表面应用中使用时表现出卓越的金结合特性.
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