| 摘要: |
| 利用磁致伸缩空蚀实验装置对高锰铝青铜焊缝在质量分数为3.5%NaCl水溶液中的空蚀行为进行了研究。结果表明,焊接金属的抗空蚀性能明显高于母材,焊缝金属的空蚀累积失重及失重率均约为母材的1/4。SEM空蚀形貌分析表明,母材的空蚀破坏比焊缝金属严重得多,导致空蚀破坏的裂纹萌生于晶界。 |
| 关键词: 高锰铝青铜焊缝 钨极氩弧焊(TIG) 空蚀 |
| DOI： |
| 分类号: |
| 基金项目:国防基金重点项目 |
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| Cavitation erosion of welding seam of Cu12Mn8Al3Fe2 Ni alloyin NaCl solution |
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| Abstract: |
| Cavitation erosion of welding seam Cu12Mu8Al3Fe2Ni alloy in 3.5% NaCl solusion was studied by magnet to strictive vibratory device. Results showed that the seam of the alloy was more resistant to the corrosion, and the mass loss was about 1/4 of that in parent metal. SEM observation revealed that the corrosion in parent metal initiated at the phase boundaries between the seam and the base. |
| Key words: as-welded Cu12Mu8Al3Fe2Ni alloy Tungsten inert gas welding (TIG) cavitation erosion |
