Title of article
Comparisonstudyonresistancetowearandabrasionofhigh-temperatureslidingstrikeoflaserandplasmaspraylayeronthestainlesssteelsurfaceOriginalResearchArticle
Author/Authors
ShihongShi، نويسنده , , QiguangZheng، نويسنده , , GeyanFu، نويسنده , , XinlinWang، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
6
From page
121
To page
126
Abstract
Inthispaper,theeffectofcoatings,whichareformedwithlasercladdingandplasmasprayweldingon1Cr18Ni9Tibasemetalofnuclearvalveseats,onwearresistanceisstudied.A5-kWtransverse-flowingCO2laserisusedforcladdingCobasealloypowderpre-placedonthesubstrate.Comparingwiththeplasmaspraycoatings,thelaser-claddinglayerhavelowerrateofspoiledproductsandhigherrateoffinishedproducts.Theirmicrostructureisextremelyfine.Theyhaveclosetextureandsmall-sizegrain.Theirdilutiondilutedbythecompositionsoftheirbasemetalandhot-effectonbasemetalareless.Thehardness,toughness,andstrengthofthelaser-claddinglayersarehigher.Thegrainsizeis11–12thgradeinthelaser-claddinglayerand9–10thintheplasmaspraylayer.Thewidthofcombinationzonebetweenlaser-claddinglayerandsubstrateis10–45μmbutthatbetweenplasmaspraylayerandsubstrateis120–160μm.Theweartestshowsthatthelaserlayershavehigherpropertyofanti-friction,anti-scour,andhigh-temperatureslidingstrike.Thewearresistanceoflaser-claddinglayerisaboutonetimehigherthanthatofplasmasprayweldinglayer.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894755
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