利用化学浸泡实验法和电化学测试法研究了添加硅钙合金对AM60镁合金耐腐蚀性能的影响。结果表明,硅钙合金加入后细化了AM60合金的显微组织、形成了新的耐腐蚀相—Mg2Si相、使β-Mg17Al12相的含量增多,从而使合金的腐蚀电位正移、腐蚀电流密度和腐蚀速率降低,合金的耐腐蚀性得到有效改善。
Effect of silicocalcium alloy addition on corrosion resistance of AM60 alloy was studied by means of chemical immersion and electrochemical test methods.The results show that the microstructure of AM60 alloy is effectively refined,and Mg2Si phase forms which has good corrosion resistance and the fraction of β-Mg17Al12 phase increases by adding small amount of silicocalcium alloy.The corrosion potential of AM60 alloy is improved,the corrosion current density and the corrosion rate are reduced by the addition of small amount of silicocalcium alloy.
参考文献
| [1] | 师昌绪,李恒德,王淀佐,李依依,左铁镛.加速我国金属镁工业发展的建议[J].材料导报,2001(04):5-6. |
| [2] | 宫文彪,李于朋,马凯,孙大千.镁合金等离子喷涂Al/Al_2O_3涂层的耐腐蚀性能[J].材料热处理学报,2009(06):164-168. |
| [3] | 王铁旦,刘洪喜,林波,孟春蕾,蒋业华,周荣锋.复合改性处理对AZ91镁合金表面结构和耐蚀性能的影响[J].材料热处理学报,2011(05):133-137. |
| [4] | Yuan Guangyin;Liu Manping;Ding Wenjiang .Microstructure and mechanical properties of Mg-Zn-Si-based alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):314-320. |
| [5] | 曹林锋,苏学宽,杜文博,吴玉锋,聂祚仁,左铁镛.Ca含量对AZ61-1Si合金显微组织及力学性能的影响[J].金属热处理,2006(z1):46-49. |
| [6] | Guang Ling Song;Andrej Atrens .Corrosion mechanisms of magnesium alloys[J].Advanced Engineering Materials,1999(1):11-33. |
| [7] | Song G L;Atrens A;Dargusch M .Influence of microstructure on the corrosion of diecast AZ91 D[J].Corrosion Science,1999,41(02):249-273. |
| [8] | Ambat R;Aung N;Zhou W .Evaluation of m icrostructural effects on corrosion behaviour of AZ91D magnesium alloy[J].Corrosion Science,2000,42(08):1433-1455. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%