Ma Iulai 13, 2023, ua paʻi ka hui o Prof. Gang Wang ma ka Institute of Materials Research o Shanghai University i kā lākou mau hopena noiʻi hou loa "Microstructural evolution and mechanical properties of (FeCoNi)85.84Al7.07Ti7.09 high-entropy alloy by selective laser melting me. aging treatment", e hoʻohana ana i ke kaʻina hana hoʻohui hoʻohui maikaʻi loa a me ke kaʻina hana wā pōkole e hana ai ((FeCoNi)85.84Al7.07Ti7.09) kiʻekiʻe-entropy alloy.FeCoNi) 85.84Al7.07Ti7.09 kiʻekiʻe-entropy alloy, e hōʻike ana i nā mea mechanical maikaʻi loa, me ka ikaika tensile hope loa o 1625 MPa, ka ikaika hua o 1214 MPa, a me ka elongation ma ka haki o 11.6%.ʻO Professor Jia Yandong lāua ʻo Kauka Mu Yongkun nā mea kākau like.
Nā ʻike nui
Ua noiʻi kēia hana i ka hopena o ka mālama ʻana i ka ʻelemakule ma ka microstructural evolution a me nā waiwai mechanical o (FeCoNi)85.84Al7.07Ti7.09HEA i hana ʻia eSLM.Ua unuhi ʻia kēia mau manaʻo.
(1) ʻElua mau mea hoʻoikaika ikaika, hoʻoikaika dislocation a me ka hoʻoikaika ʻana i ka ua, ua hoʻokomo ʻia ma FCNAT HEA me ka hoʻohana ʻana.SLMʻenehana a me ka mālama ʻana i ka wā pōkole ma 780 ° C.ʻO ka hopena, hiki ke hoʻokō ʻia ka hui pū ʻana o nā dislocations kiʻekiʻe a me nā pae precipitated ma FCNAT 780, ka hopena i nā waiwai mechanical maikaʻi loa (ikaika ikaika σ0.2, ikaika tensile hope loa σUTS, a me ka elongation ma ka haʻihaʻi εf waiwai o 1214 MPa, 1625 MPa , a me 11.6%, kēlā me kēia).
(2) ʻO nā haku mele o kaSLMʻO nā laʻana a me nā laʻana kahiko i haku nui ʻia i ka māhele FCC, L12 a me L21.Ma hope o ka hoʻomaʻamaʻa ʻana i ka wā kahiko, ua hoʻohaʻahaʻa ʻia nā ʻāpana L12 a me L21 a ua emi mālie ka ʻike o nā pae L12 a me L21 me ka piʻi ʻana o ka mahana o ka mālama ʻana.
Inā makemake ʻoe e ʻike i ka ʻike hou aku a pono ʻoe e hana i ke kumu hoʻohālike paʻi 3d, e ʻoluʻolu e keleponaMea Hana 3D JSADDi nā manawa āpau.
Mea kākau: Yolanda/Lili Lu/Seazon