Answer
Stress Corrosion Cracking (SCC) nuburyo bwo kunanirwa bubaho mugihe ibintu byoroshye (nkibyuma bifite imbaraga nyinshi zidafite ingese) byatewe nimpungenge zikomeye hamwe nibidukikije byangirika (nka ion ya chloride). Mu mpeta igumana impeta, 'guhagarika umutima' ni imihangayiko isigaye iva hamwe no guhangayikishwa no gushyirwaho muri ruhago. Niba impeta ya 17-7PH ikoreshwa mubidukikije byo mu nyanja idafite passivasi cyangwa igifuniko gikwiye, ion ya chloride irashobora kwinjira murwego rwa oxyde hanyuma igatangiza microscopique. Utwo dusimba dukwirakwira vuba munsi yimbere yimbere, biganisha kunanirwa gutunguranye, gucika intege. Isesengura ryubuso bwavunitse munsi ya Scanning Electron Microscope (SEM) bizerekana 'ishami' ibice byimiterere, biranga SCC. Kugabanya ubukana birimo gukoresha A286 cyangwa Inconel alloys irwanya cyane chloride iterwa na chloride.
