通过共振超声谱学研究冷喷涂多晶中的磁弹性软化
M Janovská1, P Sedlák1, M Ševčík1
1Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 182 00 Prague 8, Czechia.
The Journal of the Acoustical Society of America
|July 24, 2025
概括
激光超声波可以测量铁磁性,冷喷沉积物的残余应力. 这种无接触方法分析了磁弹性软化和再结晶,提供了对材料特性和均性的见解.
科学领域:
- 材料科学 材料科学 材料科学
- 添加剂制造 添加剂制造 添加剂制造
- 非破坏性测试 不破坏性测试
背景情况:
- 冷喷金属沉积物具有高压缩余应力,影响其机械性能.
- 分析这些压力对于增材制造中的质量控制至关重要.
研究的目的:
- 为了证明激光超声波用于分析铁磁冷喷中的残余应力.
- 研究压力,温度和磁弹性效应之间的关系.
主要方法:
- 无接触共振超声谱被用来监测剪切模量和内部摩擦.
- 通过对多晶沉积物的基里点进行测量.
- 激光-超声波被用于非破坏性应力分析.
主要成果:
- 直接评估了压力依赖的现象磁弹性软化.
- 该方法允许在库里点附近的现场观察再结晶.
- 检查了沉积物厚度的残余应力的均性.
结论:
- 激光超声波是一种可行的技术,用于在特定冷喷涂材料中的残余应力分析.
- 该方法提供了对材料行为的洞察,包括再结晶和应力分布.
- 开发了一种用于磁弹性合的室温探测技术.
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