Title of article :
Comparisonstudyonresistancetowearandabrasionofhigh-temperatureslidingstrikeoflaserandplasmaspraylayeronthestainlesssteelsurfaceOriginalResearchArticle
Author/Authors :
ShihongShi، نويسنده , , QiguangZheng، نويسنده , , GeyanFu، نويسنده , , XinlinWang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
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
Journal title :
Nuclear Engineering and Design Eslah
