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沉淀硬化不銹鋼 ｜PH stainless steel

沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)不銹鋼(gang)(gang)(gang)是(shi)一(yi)類(lei)含(han)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)元素（Cu、Al、Ti、Nb）的(de)(de)(de)鐵(tie)鉻鎳合(he)金，可以通過熱處理強(qiang)(qiang)化(hua)，此類(lei)鋼(gang)(gang)(gang)具(ju)有高強(qiang)(qiang)度、足夠的(de)(de)(de)韌(ren)性(xing)和(he)適宜的(de)(de)(de)耐(nai)蝕(shi)性(xing)。主(zhu)(zhu)要應用(yong)于(yu)宇航工業(ye)(ye)和(he)一(yi)些(xie)高技術(shu)產(chan)業(ye)(ye)。 沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)不銹鋼(gang)(gang)(gang)可區分為馬氏(shi)(shi)體、半奧氏(shi)(shi)體和(he)奧氏(shi)(shi)體沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)不銹鋼(gang)(gang)(gang)三種主(zhu)(zhu)要類(lei)型，近年(nian)來(lai)又出現了(le)鐵(tie)素體沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)不銹鋼(gang)(gang)(gang)。在馬氏(shi)(shi)體沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)不銹鋼(gang)(gang)(gang)中，基(ji)于(yu)馬氏(shi)(shi)體時效(xiao)鋼(gang)(gang)(gang)的(de)(de)(de)經驗，近年(nian)來(lai)出現了(le)馬氏(shi)(shi)體時效(xiao)不銹鋼(gang)(gang)(gang)，與前者(zhe)比較(jiao)，后者(zhe)碳含(han)量(liang)較(jiao)低(di)，其強(qiang)(qiang)化(hua)手段主(zhu)(zhu)要是(shi)靠金屬間化(hua)合(he)物析出，且(qie)熱處理簡單。