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冷和角挤压的特定侵蚀阻力行为
Zdenka Keran1, Suzana Jakovljević2, Biserka Runje3
1Department of Technology, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia.
Materials (Basel, Switzerland)
|August 29, 2024
概括
研究金属成型技术,如冷和对的等通道角压 (ECAP) 揭示了侵蚀磨损的显著差异,特别是在不同的冲击角度. 经ECAP检测的样本在不同侵蚀持续时间和角度之间显示出显著的质量损失差异.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 部落学 (tribology) 是一个学科.
背景情况:
- 的理想性质,如低密度和耐腐蚀性,使其在机械工程中至关重要.
- 金属成型工艺旨在提高特定应用的材料性能.
- 了解磨损行为对于预测元件寿命和性能至关重要.
研究的目的:
- 研究冷和等通道角压 (ECAP) 对的微观结构和机械性能的影响.
- 在不同的冲击角度和时间间隔下,评估造和ECAP处理的的侵蚀耐磨性.
- 统计分析两个成型方法之间的磨损行为的差异.
主要方法:
- 样本使用冷 (颠倒) 和等通道角压 (ECAP) 进行处理.
- 使用光学显微镜进行微结构分析.
- 侵蚀磨损测试是在不同的时间间隔和冲击角度 (磨损和冲击磨损) 进行的.
- 扫描电子显微镜 (SEM) 用于检查侵蚀机制.
- 应用了统计分析,包括t测试,以验证磨损损失的差异.
主要成果:
- 在相同的冲击角度下,在不同状态之间没有观察到侵蚀磨损的统计学意义上的差异.
- 在比较不同的磨损角度时,发现了侵蚀磨损的明显差异.
- 经ECAP检测的样本显示,由于30分钟,45分钟和60分钟的不同侵蚀角度而导致的质量损失存在统计学上显著的差异.
- 在60分钟的磨损后,造状态下也观察到质量变化的实质性差异.
结论:
- 冷和ECAP都改变了的微观结构和机械性能.
- 侵蚀磨损受到冲击角度的显著影响,在造和ECAP样品中观察到不同的行为.
- 根据磨损条件,ECAP处理导致侵蚀耐磨度的变化更为明显,特别是在长时间内.
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