Answer
Haɗaɗɗen hydrogen yana da alamun gazawar kwatsam, babban bala'i a ƙarƙashin kaya na tsaye, sau da yawa sa'o'i ko kwanaki bayan shigarwa. Fuskar karaya yawanci tsaka-tsaki ne (fatsawa suna bin iyakokin hatsi) kuma ba shi da alamun nakasar filastik (wuyansa). Wannan yana faruwa a cikin manyan ƙarfe na carbon (SAE 1070-1090) waɗanda aka tsabtace acid ko lantarki. Idan maɓuɓɓugar ruwa ta faɗo yayin da kawai ke zaune a cikin yanayin da aka riga aka ɗora a cikin taro, hydrogen shine babban wanda ake zargi. Ganewa ya haɗa da duban microscopy na lantarki (SEM) don lura da fuskokin intergranular. Rigakafin yana buƙatar canzawa zuwa ƙarewar da ba ta da kyau (kamar plating na inji ko suturar dip-spin) ko kuma bin ƙa'idodin gasa bayan-plating na $375^°F$ na awa 4-24.
