TEM observation on the ionitriding layer was carried out on steels W18Cr4V,38CrMoAl and 1Cr18Ni9Ti,and AES of elementary analysis was also made on the outer surface of ionitrid- ing layer of austenitic stainless steel...TEM observation on the ionitriding layer was carried out on steels W18Cr4V,38CrMoAl and 1Cr18Ni9Ti,and AES of elementary analysis was also made on the outer surface of ionitrid- ing layer of austenitic stainless steel.Perhaps due to the ion-bombardment effect,a microcrystalline structure with texture was affirmed along surface of the ionitriding layer.It may be affected by cathodic sputtering and absorption that the atomic ratio of Cr/Fe in- creases and of Ni/Fe decreases on surface of nitriding layer on austenitic stainless steel 1Cr18Ni9Ti,thus the α-phase microcrystalline structure occurrs.展开更多
经离子渗氮处理的工件具有高的耐磨性和优良的抗疲劳性能,广泛应用于工业生产中。但其渗氮周期长是一大弱点。为了缩短离子渗氮周期,曾采用稀土催渗方法,进行了离子渗氮试验研究,取得了明显效果。本文用 X 射线衍射分析,电镜显微观察等...经离子渗氮处理的工件具有高的耐磨性和优良的抗疲劳性能,广泛应用于工业生产中。但其渗氮周期长是一大弱点。为了缩短离子渗氮周期,曾采用稀土催渗方法,进行了离子渗氮试验研究,取得了明显效果。本文用 X 射线衍射分析,电镜显微观察等方法,进一步研究稀土元素对离子渗氮层组织结构的影响。1 试验方法选用38CrMoAl 钢进行调质处理,得到回火索氏体组织。将其机加工成金相试样。展开更多
文摘TEM observation on the ionitriding layer was carried out on steels W18Cr4V,38CrMoAl and 1Cr18Ni9Ti,and AES of elementary analysis was also made on the outer surface of ionitrid- ing layer of austenitic stainless steel.Perhaps due to the ion-bombardment effect,a microcrystalline structure with texture was affirmed along surface of the ionitriding layer.It may be affected by cathodic sputtering and absorption that the atomic ratio of Cr/Fe in- creases and of Ni/Fe decreases on surface of nitriding layer on austenitic stainless steel 1Cr18Ni9Ti,thus the α-phase microcrystalline structure occurrs.
文摘经离子渗氮处理的工件具有高的耐磨性和优良的抗疲劳性能,广泛应用于工业生产中。但其渗氮周期长是一大弱点。为了缩短离子渗氮周期,曾采用稀土催渗方法,进行了离子渗氮试验研究,取得了明显效果。本文用 X 射线衍射分析,电镜显微观察等方法,进一步研究稀土元素对离子渗氮层组织结构的影响。1 试验方法选用38CrMoAl 钢进行调质处理,得到回火索氏体组织。将其机加工成金相试样。
