Intergranular corrosion of spark plasma sintering assembled bimodal grain sized AA7075 aluminum alloys
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- 作者：Wenming Tian ; Songmei Li ; songmei_li@buaa.edu.cn" class="auth_mail" title="E-mail the corresponding author ; tianwenming.dhr@163.com" class="auth_mail" title="E-mail the corresponding author ; Xin Chen ; Jianhua Liu ; Mei Yu
- 关键词：A. Aluminum ; B. TEM ; C. Intergranular corrosion ; D. Polarization ; E. EIS
- 刊名：Corrosion Science
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：107
- 期：Complete
- 页码：211-224
- 全文大小：10878 K
文摘
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Bimodal grain sized 7075 alloys were prepared to test corrosion resistance.
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Effects of coarse and fine grains content in alloy matrix on IGC were estimated.
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IGC susceptibility of alloys decreased with increasing ratio of fine grains.
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IGC preferentially propagate along grain/sub-grain boundaries in coarse grains.
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GBP in coarse grains are bigger and more continuous, and contain more Fe and Cu.