SP700和Ti-6Al-4V钛合金细晶组织的疲劳裂纹扩展特征

航空材料学报, 2006, 26(3): 71-74. doi: 10.3969/j.issn.1005-5053.2006.03.014

SP700和Ti-6Al-4V钛合金细晶组织的疲劳裂纹扩展特征

蔡建明 ^1, , 许超 ^2, , 郝孟一 ^3, , 黄旭 ^4, , 马济民 ^5, , 曹春晓 ^6,

1.北京航空材料研究院,北京,100095

2.北京航空材料研究院,北京,100095

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

5.北京航空材料研究院,北京,100095

6.北京航空材料研究院,北京,100095

关键词： SP700 , Ti-6Al-4V , 疲劳裂纹扩展速率

Fatigue Crack Growth Characteristics of Fine Structures of SP700 and Ti-6Al-4V Titanium Alloys

研究采用一种新的热机械处理工艺获得的SP700和Ti-6Al-4V钛合金细晶组织的室温疲劳裂纹扩展性能及其疲劳断裂行为.实验结果表明,与Ti-6Al-4V合金相比,SP700钛合金具有更低的疲劳裂纹扩展速率,特别是在较大的△K的情况下.SP700和Ti-Al-4V合金具有基本相同的波浪滑移疲劳断裂特征.

参考文献

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SP700和Ti-6Al-4V钛合金细晶组织的疲劳裂纹扩展特征

Fatigue Crack Growth Characteristics of Fine Structures of SP700 and Ti-6Al-4V Titanium Alloys

参考文献