- Stainless hlau welded yeeb nkab yog nkig ntawm qhov kub thiab txias, thiab lub zog deformation yog me me nyob rau hauv qhov kub thiab txias. Ntawm qhov kub thiab txias, qhov tshwm sim ntawm elongation thiab cheeb tsam shrinkage txo yog hu ua low temperature embrittlement. Feem ntau ntawm cov ferrite series lub cev-centered cubic qauv.
- Tsis tshua muaj kub ua welded yeeb nkab yog ib tug martensitic series stainless hlau los ntawm lub austenitization kub quenching, thiab ces txias kom tsis muaj kub, yog li los ntawm prompting zus tau tej cov martensite quenching txoj kev, haum rau yooj yim los tsim residual austenite stainless hlau.
Thaum tsis tshua muaj kub, hluav taws xob tsis kam, coefficient ntawm linear expansion, thermal conductivity, thermal fusion zoo thiab sib nqus cov khoom ntawm stainless hlau welded yeeb nkab yuav hloov tau zoo heev. Kuj thiab coefficient ntawm linear expansion txo ntawm qhov kub thiab txias; thermal conductivity thiab huab hwm coj tshav kub muaj peev xwm txo qis heev ntawm qhov kub thiab txias. Young's modulus (longitudinal modulus ntawm elasticity) nce ib txhij nrog txo qhov kub thiab txias. Txij li thaum lub austenitic welded yeeb nkab muaj qhov kub thiab txias (subzreo kub) Ms point (martensite transformation pib kub lossis martensite ntau lawm kub), thaum nws khaws cia qis dua Ms point, martensite tuaj yeem tsim tau. Tsawg-kub martensite tsim ua rau austenitic stainless hlau, cov neeg sawv cev steel hlau SUS304 (18Cr-8Ni) tsis-magnetic nyob rau hauv chav tsev kub, sib nqus ntawm qhov kub thiab txias.
Ntawm qhov kub thiab txias, ferritic stainless hlau welded yeeb nkab yog nkig ntawm qhov kub thiab txias zoo li carbon hlau, tab sis tsis yog austenitic hlau. Yog li ntawd, ferritic los yog martensitic stainless hlau ua rau qis kub embrittlement, thaum austenitic stainless hlau los yog npib tsib xee-raws li alloys tsis qhia low-temperature embrittlement.SUS410 (13Cr), SUS430 (18Cr) thiab hais txog. Qhov cuam tshuam tus nqi ntawm ferritic steel welded yeeb nkab txo qis qis ntawm qhov kub thiab txias. Yog li ntawd, yuav tsum tau saib xyuas tshwj xeeb thaum siv qhov kub thiab txias.
