Ibyuma bidafite ingese koko?

Ibyuma bidafite ingese koko?

Ibyuma bitagira umwanda (Steel Steel) birwanya umwuka, umwuka, amazi nibindi bitangazamakuru byangirika cyangwa ibyuma bitagira umwanda. Kurwanya ruswa kwayo biterwa nibintu bivangwa nibyuma. Mubisanzwe, chromium irenze 12% kandi ifite ibyuma byangirika byitwa ibyuma bitagira umwanda. Chromium nikintu cyibanze cyo kubona ruswa idashobora kwangirika. Iyo ibintu bya chromium biri mu byuma bigera kuri 12%, chromium ikora na ogisijeni mu buryo bubora kugirango ikore firime yoroheje ya firime (passivation film) hejuru yicyuma. ) Kugirango wirinde kwangirika kwicyuma cya substrate. Iyo firime ya oxyde ikomeje kwangirika, atome ya ogisijeni yo mu kirere cyangwa mu mazi izakomeza gucengera cyangwa atome y'icyuma mu cyuma izakomeza gutandukana, ikore oxyde ya fer irekuye, kandi ibyuma bitagira umwanda bizahora byangirika.
Ingano yubushobozi bwicyuma cyo kurwanya ruswa irahinduka hamwe nubumara bwimiti yicyuma ubwacyo, uko kurinda, imiterere yimikoreshereze, nubwoko bwibidukikije. Kurugero, umuyoboro wibyuma 304 ufite rwose imbaraga zo kurwanya ingese mukirere cyumutse kandi gisukuye, ariko kizahita cyangirika mugihe cyimuriwe mukarere k'inyanja mugicu cyinyanja kirimo umunyu mwinshi. byiza. Kubwibyo, ntabwo arubwoko ubwo aribwo bwose bwicyuma, bushobora kwihanganira kwangirika kwangirika no kubora ahantu hose.