简介:InwallshotblastingisamethodofimprovingthesurfacehardnessandhightemperatureoxidationresistanceoftheS30432high-pressureboilertube.Thedifferencesonresidualstress,sub-grainsize,micro-hardnessandstructurebetweentheS30432inwallshot-blastingtubeproducedbyBaosteelwithsixtechnologicalprocessparametersandtheimportedsuper304Hwerestudiedsystematicallybycontrasttestresearch.IthasbeendemonstratedthattheS30432obtainsahigherresidualstress,adeeperdistributed...