Pa Julayi 13, 2023, gulu la Prof. Gang Wang ku Institute of Materials Research ku Shanghai University lofalitsa zotsatira zawo zaposachedwa za kafukufuku "Microstructural evolution and mechanical properties of (FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy by selecting laser kusungunuka ndi mankhwala okalamba okalamba", omwe amagwiritsa ntchito njira yochepetsera nthawi yayitali ((FeCoNi)85.84Al7.07Ti7.09) aloyi yapamwamba kwambiri. FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy, yomwe imawonetsa zinthu zabwino kwambiri zamakina, zokhala ndi mphamvu zolimba za 1625 MPa, zokolola za 1214 MPa, komanso elongation pakuswa 11.6%. Pulofesa Jia Yandong ndi Dr. Mu Yongkun ndi olemba anzawo.
Zotsatira zazikulu
Ntchitoyi idafufuza momwe chithandizo chaukalamba chimakhudzira kusintha kwa microstructural ndi makina a (FeCoNi)85.84Al7.07Ti7.09HEA opangidwa ndiMtengo wa SLM. Zotsatira zotsatirazi zidaperekedwa.
(1) Njira ziwiri zolimbikitsira, kulimbikitsa kusuntha ndi kulimbitsa mvula, zidayambitsidwa mu FCNAT HEA pogwiritsa ntchitoMtengo wa SLMnjira ndi chithandizo cha ukalamba kwakanthawi pa 780 ° C. Zotsatira zake, kuphatikizika kwa kachulukidwe kakang'ono kwambiri komanso magawo ocheperako kumatha kukwaniritsidwa mu FCNAT 780, zomwe zimapangitsa kuti pakhale makina abwino kwambiri (otulutsa mphamvu σ0.2, mphamvu yomaliza yamphamvu σUTS, ndi elongation pakupuma εf mfundo za 1214 MPa, 1625 MPa, 6%, 11 motsatana).
(2) Zolemba za gawo laMtengo wa SLMzitsanzo ndi okalamba zitsanzo makamaka anapangidwa FCC gawo, L12 ndi L21 magawo. Pambuyo mankhwala okalamba, L12 ndi L21 magawo precipitated ndipo zili L12 ndi L21 magawo pang`onopang`ono utachepa ndi kuwonjezeka ukalamba mankhwala kutentha.
Ngati mukufuna kudziwa zambiri ndipo mukufuna kupanga chosindikizira cha 3d, chonde lemberaniJSADD 3D Manufacturernthawi iliyonse.
Wolemba: Yolanda/Lili Lu/Seazon
