Gukemura ibibazo by'imiyoboro y'icyuma kidashonga

Umuyoboro w'icyuma kidashonga ubu ukoreshwa cyane, bitewe nuko urwanya ingese neza wagize uruhare runini mu bwubatsi bw'ubwubatsi, mu gikorwa cyo kuwukora dukeneye igisubizo gikomeye cyo gutunganya imiyoboro y'icyuma kidashonga, intego nyamukuru ni ukubona martensite runaka yongera ubukana bw'ibicuruzwa, reka turebe igisubizo cyo gutunganya imiyoboro y'icyuma kidashonga:

(1) Nyuma yo gutunganya umuti, ushyushywa kugeza kuri (760±15) ℃, kandi ingano ya karuboni n'ibintu byakozwe mu muyoboro wa austenitic 904L stainless steel iragabanuka bitewe n'imvura ya karuboni ya Cr23C6 iva mu muyoboro wa austenitic 904L stainless steel mu gihe cy'iminota 90, kugira ngo aho Ms point izamuke kugeza kuri 70℃ hanyuma ikonjeshe kugeza ku bushyuhe bw'icyumba kugira ngo haboneke imiterere ya martensite + αferrite + residual austenitic. Austenite isigaye yarangiritse bitewe no gusaza kuri 510℃.

(2) nyuma yo gukosora ubushyuhe bwinshi no kuvurwa hakoreshejwe uburyo bwa cryogenic, umuti wabanje gushyushywa kugeza kuri 950°C hanyuma uguma mu gihe cy'iminota 90. Bitewe n'ubwiyongere bwa Ms point, hashoboraga kuboneka ingano nto ya martensite nyuma yo gukonjesha kugeza ku bushyuhe bw'icyumba. Nyuma y'ibyo, ingano runaka ya martensite ishobora kuboneka hakoreshejwe uburyo bwa -70°C bukonje hanyuma igaguma mu gihe cy'amasaha 8.

(3) Nyuma yo kuvurwa hakoreshejwe uburyo bwo guhindura ibintu mu buryo bukonje, martensite ikozwe n'umuyoboro udafite umugozi wa 904L ihinduka ikonje ku bushyuhe bw'icyumba. Ingano ya martensite ikozwe n'umuyoboro udafite umugozi wa 904L mu gihe cyo guhindura ibintu mu buryo bukonje ifitanye isano n'ingano y'ihinduka ry'umuyoboro n'imiterere y'umuyoboro w'icyuma kitagira umugozi wa 904L.

Uburyo butatu bwavuzwe haruguru bukunze gukoreshwa mu kuvura imiyoboro y'icyuma kidashonga, twizeye ko buzatuma ubasha kugufasha.