显微疏松对7050合金厚板疲劳性能的影响
2014-08-11 14:06:34
作者：本站整理来源：
温庆红 林林
（西南铝业（集团）有限责任公司 重庆 九龙坡 401326）
摘要：对疲劳强度不合格的7050合金厚板样品进行了断口、金相、扫描电镜和能谱分析，并对相应的铸锭样品进行追溯分析。结果表明，样品疲劳性能低是由于铸锭显微疏松引起的。
关键词：7050合金，疲劳，显微疏松
Microporosity effects on fatigue performance of 7050 alloy thick plate
Wen Qinghong Lin Lin
(Southwest aluminum (group) co. LTD. , Jiulongpo district，Chongqing 401326)
Wen Qinghong Lin Lin
(Southwest aluminum (group) co. LTD. , Jiulongpo district，Chongqing 401326)
Abstract:Fatigue fracture samples of 7050 alloy thick plate been analysised by means of microscope <javascript:void（0）；> and SEM and EDX, and the corresponding as-cast samples for trace analysis. The results show that the lower fatigue performance is caused by microporosity of the ingot.
Key words:7050 alloy, the fatigue, microporosity
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