通过冷变形循环溶液处理,在节省的18Ni (300) 钢中精炼谷物和微观结构的演变
Feng Huang1,2, Zhe Cheng1, Defa Li3
1Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China.
Materials (Basel, Switzerland)
|July 12, 2025
概括
一个新的冷变形循环溶液处理工艺增强了同节约18Ni (300) 钢的化性能. 这种方法通过提炼颗粒结构并形成保留的奥氏体,显著提高了强度和可塑性.
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.
- 机械工程 机械工程
背景情况:
- 传统加工共节约18Ni (300) 钢在增强塑性方面面临限制.
- 提高机械性能需要先进钢合金的新型加工途径.
研究的目的:
- 开发和评估冷变形循环溶液处理工艺,用于共同节约18Ni (300) 钢.
- 研究多溶液处理对微观结构和机械行为的影响.
- 为了优化实现优越的强度-可塑性平衡的过程.
主要方法:
- 开发一种冷变形循环溶液处理工艺.
- 使用谷粒大小分析等技术进行系统的微观结构性表征.
- 拉伸性能测试以评估强度和延伸.
- 对保留的奥氏体含量和质地演变的分析.
主要成果:
- 30%的冷变形,然后进行三次溶液处理 (860°C,10分钟),最大限度地精炼奥氏体颗粒 (3.3微米) 和马氏体结构.
- 观察到均的等粒,消除了纹理,并形成4.5%的保留奥氏体.
- 与传统方法相比,获得了最佳强度 (1240 MPa, +15.3%) 和可塑性 (9.93%的延伸, +94.3%).
结论:
- 冷变形循环溶液处理工艺对于改善钢材蚀性能是非常有效的.
- 谷物精炼和均的等轴化是增强强度和可塑性的关键机制.
- 这种方法提供了一个可行的途径,用于量身定制微观结构和机械性能在马拉钢.
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