通过合技术制造的/层材的减压处理
Masoud Rashidi1, Payam Tayebi1, Ramin Hashemi1
1School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran.
Heliyon
|January 30, 2025
概括
在200°C下在1小时内对/层材进行减压化,有效降低了内部残留应力. 这种处理优化了相互扩散,最大限度地减少了易碎的金属间化合物形成,从而提高了层状材料的完整性.
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
- 表面工程是什么?表面工程是什么?
背景情况:
- (Al) 和 (Mg) 合金的卷粘合制造出具有结合性质的层状材料.
- 变形的Al/Mg层材中的高内部残余应力可能会限制它们的实际应用.
- 在热处理过程中,Al/Mg接口上的金属间相位形成可能会因为易碎性而损害层状材料的完整性.
研究的目的:
- 在卷粘合后研究Al-1051/AZ31 Mg层材的微观结构.
- 确定最佳的减压回火温度,以减少剩余的压力.
- 分析化对在Al/Mg界面上的间扩散和金属间相形成的影响.
主要方法:
- 使用卷结合工艺制造Al/Mg层层.
- 现成的和烧焦的层层材料的微结构特征.
- 在200°C至400°C的温度下进行缓解压力冷却处理.
- 分析内部残留应力和再结晶度.
主要成果:
- 在200°C下1小时的减压化显著降低了内部残余应力.
- 这种最佳温度确保了足够的Al-Mg间扩散.
- 在200°C/1小时处理后,在扩散区观察到最小的脆性金属间化合物形成.
结论:
- 在200°C/1小时的减压化足以降低卷结Al/Mg层材的残余应力.
- 这种处理平衡了相互扩散,并最大限度地减少了有害的金属间相形成.
- 优化的回火条件提高了Al/Mg层材的结构完整性和潜在应用.
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