基于表面完整性的表面淬火钢材料状态对巴克豪森噪声的影响*

IF 0.3 Q4 THERMODYNAMICS
D. Sackmann, J. Heinzel, B. Karpuschewski
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引用次数: 1

摘要

摘要磨削加工过程通常会对表面完整性产生热-机械影响。除了精加工过程中残余压应力的预期发展外,磨削过程中的干扰可能导致负面影响,如拉伸残余应力,回火甚至再硬化区,并显着降低部件寿命。在工业应用中,巴克豪森噪声的分析对于检测这种不需要的热机械影响的表面完整性变得越来越重要。非破坏性方法对诸如残余应力状态和硬度的变化反应灵敏。此外,文献中还描述了其他与材料、工艺和计量相关的影响。本文研究了不同的材料状态(表面硬化深度、表面碳含量和合金成分)对巴克豪森噪声信号作为表面完整性函数的影响。结果表明,信号电平受材料条件的影响很大,因此必须使用个别的极限值来评价表面完整性。◼
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of the Material State of Ground, Case-Hardened Steels on the Barkhausen Noise Depending on the Surface Integrity*
Abstract The manufacturing process of grinding generally leads to a thermo-mechanical influence on the surface integrity. In addition to the intended development of residual compressive stresses due to the finishing process, disturbances in the grinding process can lead to negative effects such as tensile residual stresses, tempering and even rehardening zones and significantly reduce the component lifetime. In industrial applications, the analysis of Barkhausen noise is becoming increasingly important for the detection of this unwanted thermo-mechanically influenced surface integrity. The non-destructive method reacts sensitively to changes in, for example, the residual stress state as well as the hardness. In addition, other material-, process- and metrology-related influences are described in literature. The investigations presented in this paper deal with the influence of different material states (case-hardening depth, surface carbon content and alloy composition) on the signals of the Barkhausen noise as a function of the surface integrity. It is shown that the signal level is significantly influenced by the material condition and thus individual limit values must be used for evaluation of the surface integrity. ◼
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来源期刊
CiteScore
1.50
自引率
33.30%
发文量
43
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