冷拔無縫管的脆化現象是什么 2021-09-17
依據(ju)冷拔無縫管(guan)造成延性(xing)(xing)(xing)(xing)的(de)淬火(huo)(huo)(huo)溫(wen)度范圍,可分成超低(di)溫(wen)淬火(huo)(huo)(huo)延性(xing)(xing)(xing)(xing)和高溫(wen)淬火(huo)(huo)(huo)延性(xing)(xing)(xing)(xing)。冷拔無縫管(guan)超低(di)溫(wen)淬火(huo)(huo)(huo)延性(xing)(xing)(xing)(xing)碳素(su)鋼熱處理獲得(de)奧氏體機構后,在(zai)250~400℃溫(wen)度范圍淬火(huo)(huo)(huo)使鋼脆化(hua)(hua),其延展(zhan)性(xing)(xing)(xing)(xing)一延性(xing)(xing)(xing)(xing)轉(zhuan)換(huan)溫(wen)度顯著(zhu)上升。已脆化(hua)(hua)的(de)…