Ka la 13 Phupu 2023, sehlopha sa Prof. Gang Wang Setsing sa Lipatlisiso sa Lintho tsa Univesithi ea Shanghai se phatlalalitse liphetho tsa bona tsa morao-rao tsa "Microstructural evolution and mechanical properties of (FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy by selective laser melting with. phekolo ea botsofali", e sebelisang mokhoa o sebetsang haholo oa ho eketsa lisebelisoa le mokhoa oa ho tsofala oa nakoana ho hlahisa ((FeCoNi)85.84Al7.07Ti7.09) alloy e phahameng ea entropy.FeCoNi)85.84Al7.07Ti7.09 alloy e phahameng ea entropy, e bonts'ang thepa e ntle ea mochini, e nang le matla a ho qetela a 1625 MPa, matla a tlhahiso ea 1214 MPa, le elongation nakong ea khefu ea 11.6%.Moprofesa Jia Yandong le Dr. Mu Yongkun ke bangoli ba bang.
Liphuputso tsa bohlokoa
Mosebetsi ona o ile oa batlisisa phello ea phekolo ea botsofali ho nts'etsopele ea microstructural le thepa ea mechine ea (FeCoNi)85.84Al7.07Ti7.09HEA e hlahisoang keSLM.Ho ile ha etsoa liqeto tse latelang.
(1) Mekhoa e 'meli ea ho matlafatsa, ho matlafatsa le ho matlafatsa pula, e ile ea hlahisoa ho FCNAT HEA ho sebelisoa.SLMmokhoa le phekolo ea nako e khutšoanyane ea botsofali ho 780 ° C.Ka lebaka leo, ho ka finyelloa motsoako oa li-dislocations tse phahameng haholo le mekhahlelo e nang le pula e ngata ho FCNAT 780, e leng se hlahisang thepa e nepahetseng ea mochine (matla a tlhahiso σ0.2, matla a ho qetela a σUTS, le elongation ea 1214 MPa, 1625 MPa) , le 11.6%, ka ho latellana).
(2) Mekhahlelo ea mekhahlelo eaSLMlisampole le lisampole tsa khale li entsoe haholo-holo ka mekhahlelo ea FCC, L12 le L21.Ka mor'a phekolo ea botsofali, mekhahlelo ea L12 le L21 e ile ea fokotseha 'me litaba tsa L12 le L21 li fokotseha butle-butle ka ho eketseha ha mocheso oa phekolo ea botsofali.
Haeba u batla ho tseba lintlha tse ling 'me u hloka ho etsa mohlala oa khatiso oa 3d, ka kopo ikopanyeJSADD 3D Moetsinako tsohle.
Mongoli: Yolanda/Lili Lu/Seazon