Muva nje, amakhasimende amaningi abuze nge-high entropy alloy.Iyiphi indlela yokukhiqiza ye-high entropy alloy?Manje ake sabelane nawe ngomhleli we-RSM.
Izindlela zokukhiqiza zama-alloys aphezulu e-entropy zingahlukaniswa ngezindlela ezintathu eziyinhloko: ukuxuba uketshezi, ukuxuba okuqinile nokuxuba igesi.Ukuxuba uketshezi kuhlanganisa ukuncibilika kwe-arc, ukuncibilika kokumelana, ukuncibilika kokungeniswa, ukuqiniswa kwe-Bridgman kanye nokukhiqizwa kwezithasiselo ze-laser.Ocwaningweni, ama-alloys amaningi e-entropy aphezulu enziwa ukuncibilika kwe-arc, futhi ukuncibilika kwe-arc kwenzeka endaweni ye-argon evalwe nge-vacuum yokuphonsa ama-alloys ancibilikisiwe.Ingxubevange ezokhiqizwa incibilika kusetshenziswa i-vacuum arc melter.Umshini wokuncibilikisa iglue ufakwe i-button crucible.Ukuncibilika kufezwa kusetshenziswa i-electrode ye-tungsten esebenzisekayo esebenzisa izinhlayiya zensimbi njengamashaji okushaya i-arc.Igumbi libe selimpontshwa kusetshenziswa iphampu ye-turbomolecular kanye nephampu eqinile ukuze kutholakale cishe 3 × 10 − 4 Tor.I-Argon igcwele ekamelweni ukuze inciphise kancane ingcindezi ukuze yakhe i-plasma lapho i-arc ishaya.Khona-ke ichibi elincibilikisiwe lishukunyiswa yi-plasma evamile.Inqubo iphinda iphindwe izikhathi eziningana ukuze kuzuzwe ukufana kokubunjwa.
Kunoma yikuphi, inselele yokushisa izingxenye ndawonye ijwayele ukwakha i-hypoeutectic.Ngenxa yesivinini sokupholisa esihamba kancane, ukwakheka nosayizi we-block ingots kunqunyelwe, futhi kubiza kakhulu ukusebenzisa lobu buchwepheshe ukwenza ama-alloys aphezulu e-entropy.Umzila wokuhlanganisa oqinile ubandakanya ingxubevange yemishini kanye nezinqubo zokuhlanganisa ezilandelayo.Ezinye izifundo zibonisa ukuthi i-alloying yemishini ikhiqiza i-nanocrystalline microstructure efanayo futhi ezinzile.Umzila wokuxuba igesi uhlanganisa i-epitaxy ye-molecular beam, i-sputtering deposition, i-pulsed laser deposition (PLD), i-vapor deposition kanye nokubekwa kwesendlalelo se-athomu.
Isikhathi sokuthumela: Nov-18-2022