Official Answer
Answer
Kunanirwa k'umunaniro mu masoko y'amazi bitangirira ku ntera ihangayikishije cyane, ubusanzwe diameter y'imbere y'igitereko. Munsi ya Scanning Electron Microscopy (SEM), kuba hariho 'striations' - imirongo ibangikanye iranga buri cyiciro cyumutwaro - byemeza umunaniro. Niba imirongo itandukanijwe cyane, byerekana umunaniro mwinshi, umunaniro muke. Niba ari byiza cyane, ni umunaniro muke, umunaniro mwinshi. Muri 17-7PH, kunanirwa akenshi byihutishwa no kwinjiza 'Alpha-prime' martensite niba kuvura ubushyuhe bidakwiye, byagaragara nkubuso bwavunitse cyane hafi yikibanza cyatangiriye.
