NgoJulayi 13, 2023, iqela likaProf. Gang Wang kwiZiko loPhando lweZizinto kwiYunivesithi yaseShanghai lipapashe iziphumo zabo zophando zamva nje "i-Microstructural evolution kunye neepropathi zoomatshini ze (FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy by selective laser melting with unyango lokuguga", olusebenzisa inkqubo yokuvelisa okongeziweyo esebenzayo kakhulu kunye nenkqubo yokuguga yexesha elifutshane ukuvelisa ((FeCoNi)85.84Al7.07Ti7.09) i-alloy ephezulu ye-entropy.FeCoNi)85.84Al7.07Ti7.09 i-alloy ephezulu ye-entropy, ebonisa iipropathi ezigqwesileyo zomatshini, ezinamandla okugqibela e-1625 MPa, amandla esivuno se-1214 MPa, kunye nobude bekhefu le-11.6%.Unjingalwazi uJia Yandong kunye noGqr. Mu Yongkun ngababhali abahambelanayo.
Iziphumo eziphambili
Lo msebenzi uphande umphumo wonyango lokuguga kwi-microstructural evolution kunye ne-mechanical properties (FeCoNi) 85.84Al7.07Ti7.09HEA eveliswa nguI-SLM.Kwenziwa ezi zigqibo zilandelayo.
(1) Iindlela ezimbini zokomeleza, ukomelezwa kokushenxiswa kunye nokomeleza imvula, zaziswa kwi-FCNAT HEA kusetyenziswa.I-SLMubuchule kunye nonyango lokuguga kwexesha elifutshane kuma-780°C.Ngenxa yoko, indibaniselwano ye-high-density dislocations kunye nezigaba ezincitshisiweyo zinokufezekiswa kwi-FCNAT 780, okukhokelela kwiipropathi ezifanelekileyo zoomatshini (isivuno samandla σ0.2, amandla okuqina okugqibela σUTS, kunye nobude kwi-break εf ixabiso le-1214 MPa, 1625 MPa , kunye ne-11.6%, ngokulandelanayo).
(2) Iziqendu zesigaba seI-SLMiisampulu kunye neesampulu ezindala zenziwa ikakhulu isigaba seFCC, izigaba ze-L12 kunye ne-L21.Emva kokunyanga ukuguga, izigaba ze-L12 kunye ne-L21 zancipha kwaye umxholo we-L12 kunye ne-L21 izigaba zehla ngokuthe ngcembe ngokunyuka kweqondo lokushisa lokuguga.
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