Njengoba sonke sazi, ukwengeza izinhlobo eziningi zezinsimbi ku-alloy kuvame ukubhidliza izinto. Kodwa-ke, ama-alloy aphezulu e-entropy (HEAs) ahlukile kuma-alloy avamile: aqukethe izinsimbi eziningi kodwa awabonisi ukubhidliza, okwenza abe uhlobo olusha lwezinto.
Ekukhiqizweni kwezimboni, ukuqinisekisa ukuzinza kanye nokuvumelana kwemikhiqizo ye-alloy ene-entropy ephezulu kubalulekile. Ngenxa yalesi sizathu, abahloli bokuqina be-Vickers basetshenziselwa ukwenza ukuhlolwa kokuqina kuma-alloy ane-entropy ephezulu ngesikhathi senqubo yokukhiqiza, okuvumela ukutholakala ngesikhathi kwezinkinga zekhwalithi ezingaba khona. Uma inani lokuqina liphambuka ebangeni elilindelekile, lingabonisa amaphutha enkambisweni yokukhiqiza—njengokulawulwa okungalungile kokwakheka kwe-alloy noma izinqubo zokwelashwa kokushisa ezingafanele. Ngokulungisa inqubo yokukhiqiza ngokushesha, ibhetshi ngalinye lemikhiqizo ye-alloy ene-entropy ephezulu lingahlangabezana namazinga ekhwalithi, ngaleyo ndlela kuthuthukiswe izinga lokufaneleka komkhiqizo kanye nokuthembeka.
Sithola isampula edingekayo ukuze kuhlolwe ubulukhuni ngezansi.
Izinqubo zokuhlolwa kobulukhuni be-HEA ngumhloli wobulukhuni be-Vickers
1. Yenza ukulungiswa kwesampulu yale HEA ibe yibhulokhi yesampula ejwayelekile ngomshini wokunyathelisa othomathikhi, ukuze sihlole ubulukhuni bayo ngesihloli sobulukhuni seVickers ngemva kokugaya nokupholisha.
2. Beka isampula ebhentshini lokusebenzela kancane kancane kwesihloli sokuqina kwe-Vickers.
3. Lungisa ukugxila okuhlosiwe ukuze kuboniswe isithombe esicacile kusofthiwe yokuhlola ubulukhuni be-Vickers.
4. Setha amapharamitha esampula ye-HEA evivinyiwe kusofthiwe yokuhlola ubulukhuni be-Vickers.
5. I-indenter yenza i-rhombus indentation ebusweni besampula ye-HEA, bese uchofoza inkinobho Yokulinganisa Okuzenzakalelayo ukuze uthole inani lobunzima kusofthiwe yokuhlola ubulukhuni be-Vickers.
6. Umsebenzi Wezibalo: uqopha amanani alinganisiwe eqembu ngalinye bese ususa ngokuzenzakalelayo izinto ezingaphandle.
7. Umsebenzi Wezibalo: Bala inani eliphakathi kanye nokuphambuka okujwayelekile.
Inani lokuqina kwe-HEA elingaphezu kwe-HV lihlolwa yi-Model HVT-50A, okuwuhlobo oluthengiswa kakhulu lwabahloli bokuqina be-Vickers enkampanini yethu.
Isikhathi sokuthunyelwe: Disemba-25-2025
