在制过程中减少序列对铁性不钢的变形纹理和异性质的影响
Sang Heon Cho1,2, Young Jin Lee2, Warda Bahanan1
1School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Materials (Basel, Switzerland)
|May 27, 2023
概括
在铁性不钢制中优化减少序列可以增强纹理和深度绘制特性. 路线B,以50% + 67%的减少序列,改善了线阻力和纹理度.
科学领域:
- 材料科学 材料科学 材料科学
- 金工程 金工程 金工程
- 固态物理 固态物理
背景情况:
- 铁性不钢在各种工业应用中广泛使用.
- 控制材料质地和异构性对于优化机械性能至关重要.
- 热力学过程的顺序显著影响材料的微观结构和性能.
研究的目的:
- 为了研究在轮过程中不同减少序列对铁性不钢的纹理和异性质的影响.
- 为了将微观结构特征和纹理发展与深度绘图特性和抗性相关联.
- 确定一个最佳的滚动策略,以提高可塑性和性能.
主要方法:
- 热机械加工涉及滚动变形与各种减少序列 (路线A:67% + 50%;路线B:50% + 67%).
- 微结构分析以比较谷物形态和再结晶行为.
- 纹理分析以量化晶体学方向分布和边界特征.
- 评估深度拉动性能 (r_m, Δr) 和抗的性能.
主要成果:
- 在路线A和路线B之间没有观察到谷物形态的显著差异.
- 路线B带来了沿着γ纤维的更利的纹理,以及更高的特定误导边界 (38°111) 分数.
- 路线B实现了最佳的深度绘图特性,最大化了r_m和最小化了Δr,以及改善了坡阻力.
结论:
- 轮过程中的减速序列对铁性不钢的纹理发展和异构性产生了重大影响.
- 路线B的特定减少序列促进了选择性增长控制的再结晶,从而产生了有利的微观结构.
- 通过B路线优化的纹理和微观结构提高了深度绘图性能和抗性,这对于应用至关重要.
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