NgoJulayi 13, 2023, ithimba likaProf. Gang Wang e-Institute of Materials Research yase-Shanghai University lashicilela imiphumela yalo yakamuva yocwaningo "I-Microstructural evolution and mechanical properties of (FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy by selective laser melting with ukwelashwa kokuguga", esebenzisa inqubo yokukhiqiza okungeziwe esebenza kahle kakhulu kanye nenqubo yokuguga yesikhashana ukukhiqiza ((FeCoNi)85.84Al7.07Ti7.09) ingxubevange ephezulu ye-entropy.I-FeCoNi)85.84Al7.07Ti7.09 ingxubevange ephezulu ye-entropy, ebonisa izakhiwo ezinhle kakhulu zemishini, enamandla okugcina eqinile angu-1625 MPa, amandla okukhiqiza angu-1214 MPa, kanye nobude lapho bephuka ngu-11.6%.USolwazi Jia Yandong kanye noDkt. Mu Yongkun bangababhali abahambisanayo.
Okutholakele okubalulekile
Lo msebenzi uphenye umphumela wokwelashwa kokuguga ekuziphendukeleni kwe-microstructural kanye nezakhiwo zemishini ze-(FeCoNi)85.84Al7.07Ti7.09HEA ezikhiqizwe nguI-SLM.Kwafinyelelwa iziphetho ezilandelayo.
(1) Izindlela ezimbili zokuqinisa, ukuqinisa ukugudluka kanye nokuqinisa imvula, zethulwa ku-FCNAT HEA kusetshenziswaI-SLMindlela kanye nokwelashwa kokuguga kwesikhashana ku-780°C.Ngenxa yalokhu, inhlanganisela yokugudluka kokuminyana okuphezulu kanye nezigaba ezinemvula ingafinyelelwa ku-FCNAT 780, okuholela emikhiqizweni efanelekile (isivuno samandla σ0.2, amandla okuqina okugcina σUTS, kanye nokwelulwa kwamanani ekhefu angu-1214 MPa, 1625 MPa , kanye ne-11.6%, ngokulandelana).
(2) Izigaba zezingoma ze-I-SLMamasampula namasampula amadala akhiwe ngokuyinhloko isigaba se-FCC, izigaba ze-L12 ne-L21.Ngemuva kokwelashwa kokuguga, izigaba ze-L12 ne-L21 zanda futhi okuqukethwe kwezigaba ze-L12 ne-L21 kwehla kancane kancane ngokunyuka kwezinga lokushisa lokwelapha ukuguga.
Uma ufuna ukwazi ulwazi olwengeziwe futhi udinga ukwenza imodeli yokuphrinta ye-3d, sicela uxhumaneI-JSADD 3D Manufacturerzikhathi zonke.
Umbhali: Yolanda/Lili Lu/Seazon