Assessment of residual stress of welded structural steel plates with or without post weld rolling using the contour method and neutron diffraction
Assessment of residual stress of welded structural steel plates with or without post weld rolling using the contour method and neutron diffraction
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DOI：
10.1016/j.jmatprotec.2013.07.004
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发表时间：
2013-12-01
影响因子：
6.3
通讯作者：
De Castro, Paulo M. S. T.
中科院分区：
文献类型：
--
作者：
Braga, Daniel F. O.;Coules, Harry E.;De Castro, Paulo M. S. T.
采用焊后滚压技术对S355结构钢对接接头的焊接残余应力进行了修正。两种不同的残余应力测量技术：轮廓法和中子衍射。发现两种测量技术的结果之间有很好的一致性，说明轮廓法提供数据的能力，否则只能使用昂贵的中子和同步辐射。焊后滚轮张紧对残余应力的影响包括残余应力分布的实质性变化，焊缝沿着的大拉伸应力变为压缩应力（C）2013 Elsevier B.V.保留所有权利。
The post-welding rolling technique was used to modify the welding residual stress profile of butt joints of S355 structural steel. Two different residual stress measurement techniques were used: contour method and neutron diffraction. A good agreement between the results of both measurement techniques was found, illustrating the capability of the contour method to provide data otherwise available only using costly neutron and synchrotron radiation. The effect of post-weld roller tensioning on residual stress consisted in a substantial change in residual stress profile, with the large tensile stresses along the weld seam becoming compressive (C) 2013 Elsevier B.V. All rights reserved.