然埋设试件的方法，研究了 １Ｃｒ１８Ｎｉ９Ｔｉ不锈钢在酸性、中性及碱性上中埋设 １， ３， ５年 后的腐蚀特征.结果表明，不锈钢在酸性及中性土壤中腐蚀轻微，在含盐量较高的碱性土壤中腐蚀比中酸 性土壤严重， 且出现点蚀现象；土壤中的 Ｃｌ－及 ＳＯ２－是影响不锈钢腐蚀的最主要因素，随着 Ｃｌ－及 ＳＯ２的增多，不锈钢的腐蚀失重增大；自然腐蚀电位也反映不锈钢在土壤中的腐蚀状态，腐蚀电位为正， 腐蚀轻微，腐蚀电位越负，腐蚀越严重 However, the corrosion behavior of 1Cr18Ni9Ti stainless steel after 1, 3 and 5 years buried in acid, neutral and alkaline was studied by embedding the specimens.The results show that the corrosion of stainless steel in acid and neutral soil is slight, Corrosion in alkaline soil with higher amount is more severe than that in acid soil, and pitting corrosion occurs. Cl- and SO2- in soil are the most important factors affecting the corrosion of stainless steel. With the increase of Cl- and SO2, the corrosion of stainless steel Weight loss increases; natural corrosion potential also reflects the corrosion of stainless steel in the soil, the corrosion potential is positive, mild corrosion, corrosion potential more negative, the more serious corrosion