【摘要】：為節(jié)約鎳資源,研究了不同成分17.8~19.1%Cr,3.93~6.05%Mn,3.58~4.62%Ni,0.32~0.42%N節(jié)鎳型奧氏體不銹鋼固溶后的力學性能和耐蝕性能,以期獲得可替代304不銹鋼的新鋼種。結果表明:Cr18.4Mn5.98Ni4.62N0.42不銹鋼的力學性能和耐蝕性能與304不銹鋼相當。分析了該成分不銹鋼時效處理后的組織演變規(guī)律、冷變形過程中奧氏體穩(wěn)定性及形變誘發(fā)馬氏體相變過程。結果表明:800℃是Cr2N相析出的鼻尖溫度,隨著時效時間的增加,析出相首先以顆粒狀形貌沿晶界析出,而后以胞狀析出方式向晶內(nèi)生長。冷軋壓下率18.5%時尚未發(fā)現(xiàn)形變誘發(fā)馬氏體組織,隨著變形量增大,片層狀ε'馬氏體含量先增加后減少至消失,而板條狀α'馬氏體含量逐漸增多,相對磁導率增加,但其奧氏體穩(wěn)定性遠高于304不銹鋼�？梢�,Cr18.4Mn5.98Ni4.62N0.42不銹鋼可替代304不銹鋼。
[Abstract]:In order to save nickel resources, the mechanical properties and corrosion resistance of nickel austenitic stainless steel with different composition 17.819.1 Cr-3.936.05 and Mn3.584.62Ni0.322N section nickel austenitic stainless steel after solid solution were studied in order to obtain a new type of steel which can replace 304 stainless steel. The results show that the mechanical properties and corrosion resistance of the stainless steel WCr18.4Mn5.98Ni4.62N0.42 are similar to those of 304 stainless steel. The evolution of microstructure, austenite stability and martensite transformation induced by deformation during cold deformation were analyzed. The results show that: 800 鈩，

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