| 1Cr18Ni9Ti不锈钢应力腐蚀开裂的电位扰动极化效应 |
| |
| 引用本文： | 牛林,曹楚南,林海潮. 1Cr18Ni9Ti不锈钢应力腐蚀开裂的电位扰动极化效应[J]. 金属学报, 1998, 34(9): 959-965 |
| |
| 作者姓名： | 牛林 曹楚南 林海潮 |
| |
| 作者单位： | 中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室!沈阳，110015 |
| |
| 基金项目： | 国家自然科学基金!59571058，中国科学院“百人计划”资助 |
| |
| 摘 要： | 在慢应变速率拉伸过程中通过施加恒电位，循环电位扫描及电位阶跃等不同的电位扰动极化方式，研究了１Ｃｒ１８Ｎｉ９Ｔｉ奥氏体不锈钢在０．７５ｍｏｌ．Ｌ＾－１ＨＣｌ＋０．２５ｍｏｌ．ｌ＾－１ＮａＣｌ溶液中的应力腐蚀开裂敏感性，并利用ＳＥＭ观察断口形貌，结果表明，电位扫描速度和电位阶跃频率对裂纹萌生与扩展有显著影响，相同电位范围内，高频率电位阶跃比电位扫描导致更高的材料断裂敏感性。
|
| 关 键 词： | 不锈钢 应力腐蚀开裂 电位扰动 极化 |
| 收稿时间： | 1998-09-18 |
| 修稿时间： | 1998-09-18 |
EFFECT OF POTENTIAL PERTURBATION POLARIZATION ON THE STRESS CORROSION CRACKING OF 1Cr18Ni9Ti STAINLESS STEEL |
| |
| NIU Lin,CAO Chunan,LIN Haichao Correspondent: NIU Lin,Tel: ,Fax: ,E-mail: lin.h.c@icpm.syb.ac.cn. EFFECT OF POTENTIAL PERTURBATION POLARIZATION ON THE STRESS CORROSION CRACKING OF 1Cr18Ni9Ti STAINLESS STEEL[J]. Acta Metallurgica Sinica, 1998, 34(9): 959-965 |
| |
| Authors: | NIU Lin CAO Chunan LIN Haichao Correspondent: NIU Lin Tel: Fax: E-mail: lin.h.c@icpm.syb.ac.cn |
| |
| Affiliation: | NIU Lin,CAO Chunan,LIN Haichao (State Key Laboratary for Corrosion and Protection,Institute of Corrosion and Protection of Metals,The Chinese Academy of Sciences,Shenyang )Correspondent: NIU Lin,Tel: (),Fax: (),E-mail: lin.h.c@icpm.syb.ac.cn |
| |
| Abstract: | The SCC susceptibility of 1Cr18Ni9Ti austenitic stainless steel in 0.75mol·L-1HCl +0.25mol·L-1NaCl solution has been studied by slow strain rate tests(SSRT) and SEM. During the slow rate tensile process, the specimen was polarized with different potential perturbation modes such as potentiostatic, cyclic potential scan and cyclic potential step methods. The results indicated that potential scan rate and step frequency played an essential role in the initiation and propagation of crack. Potential step at high frequency led to much higher cracking susceptibility than potential scan within the same potential ranges. |
| |
| Keywords: | 1Cr18Ni9Ti stainless steel stress corrosion cracking potential perturbation polarization |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《金属学报》浏览原始摘要信息 |
|
点击此处可从《金属学报》下载全文 |
