草酸电解浸蚀是测定不锈钢晶间腐蚀倾向的快速而灵敏的有效方法,这已为中外资料所确认。我国不锈钢晶间腐蚀倾向试验法标准(以下简称“国标草案”)亦提出用10%草酸电解浸蚀作为65%硝酸试验(以下称“丙法”)的筛选方法;但是,对于硫酸——硫酸铜加铜屑试验(以下称“甲法”)却规定用60%硫酸加0.5%乌洛托品试验(以下称“乙法”)来筛选。本文则用10%草酸电解浸蚀方法对1Cr18Nig、1Cr18Ni9Ti、 Electrolytic etching of oxalic acid is a fast and sensitive method to determine the intergranular corrosion tendency of stainless steel, which has been confirmed by Chinese and foreign sources. China’s stainless steel intergranular corrosion propensity test standard (hereinafter referred to as “GB Draft”) also proposed 10% oxalic acid electrolytic etching as a 65% nitric acid test (hereinafter referred to as “C” method) screening; However, Sulfuric acid - copper sulfate plus copper scrap test (hereinafter referred to as “A”) is provided with 60% sulfuric acid plus 0.5% urotropine test (hereinafter referred to as “B method”) to screen. This article is 10% oxalic acid etching method of 1Cr18Nig, 1Cr18Ni9Ti,