基于复杂表面的合金组件的扩散粘合接口的弹模型进行界面刚性的非破坏性测试
Gongpeng Yang1, Zhenggan Zhou1,2, Tengfei Ma3
1School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China.
Scientific reports
|September 22, 2023
概括
本研究引入了一种用于复杂合金组件中扩散粘合接口的超声波测试的新方法. 该技术提高了在具有挑战性的表面上的缺陷检测能力.
科学领域:
- 材料科学 材料科学 材料科学
- 非破坏性测试 不破坏性测试
- 机械工程 机械工程
背景情况:
- 超声波测试对于检测扩散粘合接口的缺陷至关重要.
- 复杂的组件几何和弱缺陷信号对当前超声波方法构成挑战.
- 合金广泛用于航空航天和其他苛刻的应用.
研究的目的:
- 开发一种界面刚性表征方法,用于复杂表面合金组件中扩散粘合的超声波测试.
- 分析复杂几何和粘合接口变化的影响,超声波测试结果.
- 为了提高扩散粘合缺陷的检测.
主要方法:
- 基于弹模型的界面刚性表征方法的开发.
- 建立有限元模型来模拟超声波场和缺陷反应.
- 在有人工缺陷的样本和复杂表面合金组件上进行超声波C扫描实验.
- 建议15 MHz作为最佳测试频率.
主要成果:
- 有限元模型有效地分析了缺陷反应,复杂的表面效应和接口深度不一致.
- 拟议的界面刚性表征方法证明了其适用于高达14°的倾斜角的复杂表面组件.
- 实验验证证了该方法在改善扩散结合接口缺陷检测方面的有效性.
结论:
- 新的界面刚性表征方法增强了复杂表面合金组件中扩散粘合界面的超声波测试.
- 该方法提供了改进的缺陷检测能力,解决了传统超声波测试的局限性.
- 建议测试频率为15 MHz,以获得最佳结果.
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