Nyob rau lub Xya hli ntuj 13, 2023, Prof. Gang Wang pab neeg ntawm lub koom haum ntawm cov ntaub ntawv tshawb fawb ntawm Shanghai University tau luam tawm lawv cov ntaub ntawv tshawb fawb tshiab "Microstructural evolution thiab txhua yam khoom ntawm (FeCoNi) 85.84Al7.07Ti7.09 high-entropy alloy los ntawm xaiv laser melting nrog. Kev laus kev kho mob", uas siv cov txheej txheem tsim khoom muaj txiaj ntsig zoo thiab cov txheej txheem kev laus luv luv los tsim ((FeCoNi) 85.84Al7.07Ti7.09) high-entropy alloy.FeCoNi) 85.84Al7.07Ti7.09 high-entropy alloy, uas nthuav tawm cov khoom siv zoo heev, nrog lub zog tensile kawg ntawm 1625 MPa, lub zog tawm ntawm 1214 MPa, thiab elongation ntawm tawg ntawm 11.6%.Xibfwb Jia Yandong thiab Dr. Mu Yongkun yog cov kws sau ntawv sib koom ua ke.
Cov kev tshawb pom tseem ceeb
Txoj haujlwm no tau tshawb xyuas cov txiaj ntsig ntawm kev kho kev laus ntawm microstructural evolution thiab txhua yam khoom ntawm (FeCoNi) 85.84Al7.07Ti7.09HEA ua los ntawmSLM.Cov lus xaus nram qab no tau kos.
(1) Ob txoj kev txhawb zog, kev ua kom muaj zog ntxiv thiab ua kom muaj zog los nag, tau qhia hauv FCNAT HEA sivSLMcov txheej txheem thiab kev kho mob luv luv ntawm 780 ° C.Raws li qhov tshwm sim, kev sib xyaw ua ke ntawm qhov sib txawv ntawm qhov kub thiab txias tuaj yeem ua tiav hauv FCNAT 780, uas ua rau cov khoom siv kho kom zoo (yield zog σ0.2, lub zog tensile kawg σUTS, thiab elongation ntawm tawg εf qhov tseem ceeb ntawm 1214 MPa, 1625 MPa. , thiab 11.6%, feem).
(2) Phase compositions ntawm lubSLMcov qauv thiab cov qauv hnub nyoog feem ntau yog tsim los ntawm FCC theem, L12 thiab L21 theem.Tom qab kev laus kev kho mob, L12 thiab L21 theem precipitated thiab cov ntsiab lus ntawm L12 thiab L21 theem maj mam txo nrog qhov nce ntawm kev laus kho kub.
Yog tias koj xav paub ntau ntxiv thiab xav ua 3d luam ntawv qauv, thov hu rauJSADD 3D Chaw tsim tshuaj paustxhua lub sijhawm.
Sau: Yolanda/Lili Lu/Season