| 轧制变形对690合金特殊晶界比例及耐晶间腐蚀性能的影响 |
| |
| 引用本文： | 冯万里,张乐福,马明娟.轧制变形对690合金特殊晶界比例及耐晶间腐蚀性能的影响[J].中国腐蚀与防护学报,2012,32(4):296-299. |
| |
| 作者姓名： | 冯万里 张乐福 马明娟 |
| |
| 作者单位： | 1. 上海交通大学核科学与工程学院 上海 200240
2. 宝钢股份特钢事业部 上海 200940 |
| |
| 基金项目： | 国家自然科学基金委和宝山钢铁股份有限公州联合资助项目(50871130) |
| |
| 摘 要： | 不同轧制变形量的镍基690合金试样在1120℃×5 min的固溶处理和720℃×10 h的脱敏处理后，进行了晶粒度、特殊晶界比例及晶间腐蚀性能研究。结果表明，晶粒度随着轧制变形量的增加而升高，晶粒尺寸减小；特殊晶界比例在5%变形量试样达到最高,为67.7%，并随着轧制变形量的增加而减小，67%冷轧时特殊晶界比例降低到25.4%；ASTM G28-A法晶间腐蚀减重5%变形量的试样达到最低。
|
| 关 键 词： | 690合金 晶粒度 晶间腐蚀 晶界工程 特殊晶界 |
| 收稿时间： | 2011-07-20 |
EFFECTS OF ROLLING ON THE SPECIAL GRAIN BOUNDARIES AND INTERGRANULAR CORROSION OF ALLOY 690 |
| |
| FENG Wanli,ZHANG Lefu,MA Mingjuan.EFFECTS OF ROLLING ON THE SPECIAL GRAIN BOUNDARIES AND INTERGRANULAR CORROSION OF ALLOY 690[J].Journal of Chinese Society For Corrosion and Protection,2012,32(4):296-299. |
| |
| Authors: | FENG Wanli ZHANG Lefu MA Mingjuan |
| |
| Affiliation: | 1.School of Nuclear Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240; 2.Special Steel Branch,BaoSteel Co.Ltd,Shanghai 200940 |
| |
| Abstract: | Alloy 690 specimens were deformed by rolling and followed by solution treatment at 1120℃ for 5 min and thermal treatment at 720℃ for 10 h. Grain size, special grain boundary concentration and resistance to intergranular corrosion were evaluated. The results show that the grain size number increases with the increase of deformation, concentration of special boundaries reaches the maximum of 67.7% for specimens with 5% plastic deformation, and decrease with the increase of deformation, and the concentration of special boundaries of specimens with 67{\%} deformation decreases to 25.4%. Intergranular corrosion was evaluated using ASTM G28-A method, and specimens with 5% deformation show the lowest weight loss rate. |
| |
| Keywords: | alloy 690 grain size intergranular corrosion grain boundary engineering special boundary |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国腐蚀与防护学报》浏览原始摘要信息 |
|
点击此处可从《中国腐蚀与防护学报》下载全文 |
