论文部分内容阅读
应用阳极极化及ＡＥＳ／ＸＰＳ技术，研究了Ｆｅ－３０．８Ｍｎ－８．２Ａｌ奥氏体合金在ｐＨ值为－０．８至１５．３的水溶液中的腐蚀性能，并与Ｆｅ－３０Ｍｎ合金、低碳钢、９％Ｎｉ低温钢及１Ｃｒ１３不锈钢进行对比。在所测试的水溶液中，该合金的腐蚀抗力优于低碳钢和Ｆｅ－３０Ｍｎ合金，与９％Ｎｉ钢相当，但不及１Ｃｒ１３不锈钢。Ｆｅ－３０．８Ｍｎ－８．２Ａｌ合金在１ｍｏｌ／ＬＮａ２ＳＯ个中形成的钝化膜的最表层可能为氢氧化物，而膜的主体由Ｆｅ２Ｏ３、Ｍｎ２Ｏ３及Ａｌ２Ｏ３组成。
The corrosion behavior of Fe-30.8Mn-8.2Al austenitic alloy in aqueous solution with pH value of -0.8 to 15.3 was investigated by anodic polarization and AES / XPS techniques. The corrosion behavior of the Fe-30.8Mn-8.2Al alloy was compared with Fe-30Mn alloy , Mild steel, 9% Ni cryogenic steel and 1Cr13 stainless steel. The corrosion resistance of this alloy is superior to that of mild steel and Fe-30Mn alloy in the aqueous solution tested, which is comparable to that of 9% Ni steel but less than that of 1Cr13 stainless steel. The outermost layer of the passivation film formed by Fe-30.8Mn-8.2Al alloy in 1mol / LNa2SO may be hydroxide, while the main body of the film consists of Fe2O3, Mn2O3 and Al2O3.