轴承残余应力研究报告

轴承在制造过程中经过了复杂的热处理和机械加工和装配工艺，在其表面和内部不可避免地存在残余应力，这对其服役性能有直接的影响，尤其是对轴承的疲劳寿命有较大的影响。本子课题主要采用轮廓法、逐层剥离 XRD 法和同步辐射 X 射线衍射法/中子衍射方法相结合的残余应力测量技术，量化表征高端轴承中的残余应力，研究残余应力分布与轴承失效的关系，为完善和优化高端轴承制造工艺，控制其中残余应力的大小及分布，形成有效的应力梯度以最大限度地提高轴承的服役寿命提供标准和理论依据。Bearings undergo complex heat treatment, machining and assembly processes during manufacturing. Residual stresses are inevitably present on their surfaces and within their interiors, which directly affect their service performance, especially exerting a significant impact on the fatigue life of the bearings. This sub-project adopts a residual stress measurement technique combining the contour method, layer-by-layer XRD method, synchrotron X-ray diffraction and neutron diffraction methods to quantitatively characterize the residual stresses in high-end bearings, and investigate the correlation between residual stress distribution and bearing failure. The work aims to provide standards and theoretical foundations for improving and optimizing high-end bearing manufacturing processes, controlling the magnitude and distribution of residual stresses therein, forming an effective stress gradient, and ultimately maximizing the service life of bearings.

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背景与挑战

背景概述

该数据集是一份关于轴承残余应力研究的报告，由东莞材料基因高等理工研究院的研究人员于2023年发布。报告重点采用多种先进测量技术（如轮廓法、XRD法和同步辐射/中子衍射方法）量化分析高端轴承中的残余应力，旨在探究残余应力分布与轴承失效的关联，为优化制造工艺、提升轴承服役寿命提供理论依据。数据集属于材料科学领域，包含10个文件，总数据量16.23 MB，访问受限需申请，适用于非商业学术研究。