表面技术Issue(4)：149-157,9.
焊接接头表面改性的研究进展
Progress in Surface Modification of Welded Joints
滕诚信 1左松 1赵琨 1兰绪文 1朱海洋 1张元彬1
作者信息
- 1. 山东建筑大学 材料科学与工程学院，济南 250101
- 折叠
摘要
Abstract
In this paper, the basic principles of high-energy shot blasting, surface mechanical attrition treatment, supersonic particles bombarding, ultrasonic peening, laser shock modified were overviewed. And the results of the modification treatments on the surfaces of welded joints of different materials were emphatically analyzed. These modification methods can make the surface grain of welded joints refinement, and the surface grain size of welded joints can even reach the nanoscale. At the same time, it can also improve the surface hardness of welded joints, and improve the strength of welded components. The residual tensile stress of the joints will disappear, and make the tensile stress change to the residual compressive stress, which can restrain the generation of welded joints crack source, improve the ability of anti-fatigue fracture of welded joints, and further prolong the life span of wel-ding components. It helps us acquire a further understanding of the application domain range as well as the advantages and disad-vantages of existing surface modification treatment methods. And this paper also prospected the development and research direction of the welded joints surface modification methods.关键词
焊接接头/表面改性/残余应力/抗疲劳断裂Key words
welded joints/surface modification/residual stress/anti-fatigue fracture分类
矿业与冶金引用本文复制引用
滕诚信,左松,赵琨,兰绪文,朱海洋,张元彬..焊接接头表面改性的研究进展[J].表面技术,2014,(4):149-157,9.
