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材料研究学报  2005, Vol. 19 Issue (5): 501-505    
  论文 本期目录 | 过刊浏览 |
碳含量对Ti-60合金时效过程中硅化物的影响
张尚洲;徐惠忠;刘子全;刘羽寅;杨锐
烟台大学环境与材料工程学院;烟台264005
Effect of carbon on silicide precipitates during ageing of Ti-60 titanium alloy
引用本文:

张尚洲; 徐惠忠; 刘子全; 刘羽寅; 杨锐 . 碳含量对Ti-60合金时效过程中硅化物的影响[J]. 材料研究学报, 2005, 19(5): 501-505.

全文: PDF(1414 KB)  
摘要: Ti-60合金在β和α+β相区固溶处理后空冷, 形成的片状组织和双态组织中没有硅化物析出. 随后在700~800℃时效处理168 h, 在α/β片层界面、α片层内及初生α相内析出S2类型的硅化物(Ti, Zr)6Si3. C的加入阻碍硅化物在界面处和基体中的形核和长大, 降低硅化物的析出速率. 随着合金中C含量的增加, 显著减小时效过程中硅化物的析出尺寸, 这是由于C的加入, 基体中固溶Si的能力增加及Zr原子扩散速度降低所导致的结果. 相同温度下时效处理, 双态组织中析出的硅化物尺寸比片状组织大. 时效温度升高, 硅化物的析出直径增大.
关键词 金属材料高温钛合金显微组织硅化物    
Key words
收稿日期: 1900-01-01     
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