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在线弧增材制造 316L不钢中处理缺陷的非线性超声波表征

Pengfei Wang^1,2,3, Jia Zeng^1,2, Dong Lou^1,2

¹School of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.

Materials (Basel, Switzerland)

|February 26, 2025

概括

非线性超声波测试可以有效地检测316L不钢的电弧增材制造 (WAAM) 孔隙等缺陷. 这种方法提高了增材制造组件的质量控制.

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
添加剂制造添加剂制造添加剂制造

背景情况:

316L不钢的线弧增材制造 (WAAM) 往往会导致诸如多孔性和入等缺陷.
这些缺陷会对机械性能和部件可靠性产生负面影响.
有效的缺陷检测对于确保WAAM部件的完整性至关重要.

研究的目的:

用Lamb波进行非线性超声波测试 (NLUT) 来评估WAAM 316L不钢的缺陷.
分析流芯弧 (FCAW) 参数对材料缺陷的影响.
建立NLUT作为评估WAAM过程诱导缺陷的可行方法.

主要方法:

在WAAM 316L钢样品中对缺陷 (柱状颗粒,多孔性) 的系统分析.
FCAW参数的变化:屏蔽气体 (Ar+O2,CO2) 和接速度 (20-40厘米/分钟).
基于Lamb波的非线性超声波测试的应用,用于缺陷评估.

主要成果:

非线性超声波参数表现出对孔隙度变化的高灵敏度.
特定的FCAW参数影响了诸如孔隙性和粒度结构等缺陷的形成.
NLUT成功地确定和量化了WAAM材料中的处理相关缺陷.

结论:

非线性超声波测试是一种敏感且有效的技术,用于评估WAAM 316L不钢的缺陷.
了解FCAW参数的影响是最小化缺陷的关键.
这些发现支持优化WAAM流程以提高组件可靠性.

关键词:

非线性超声波是一种非线性超声波.多孔性多孔性处理缺陷处理缺陷电缆弧增材制造电缆弧增材制造

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