Effect of grain size on fatigue-crack growth in 2524 aluminium alloy
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- 作者：Deyan Yina ; b ; Huiqun Liua ; b ; liuhuiqun@csu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yuqiang Chenc ; yqchen1984@163.com" class="auth_mail" title="E-mail the corresponding author ; Danqing Yia ; b ; Bo Wanga ; b ; Bin Wanga ; b ; Fanghua Shena ; b ; Shang Fua ; b ; Cong Tanga ; b ; Suping Pana ; b
- 关键词：Grain-size tailoring ; Fatigue-crack growth ; 2524 aluminium alloy
- 刊名：International Journal of Fatigue
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：84
- 期：Complete
- 页码：9-16
- 全文大小：2976 K
文摘
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2524 alloy plates with grain sizes (0.8–300 μm) were prepared by conventional cold rolling and heat treatment.
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Crack-growth rate was studied as function of grain size by fatigue and microstructure evaluation.
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Grain refinement led to a decrease in the resistance against fatigue-crack growth in 2524 alloy.
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The crack closure levels in coarse-grain samples were higher than those in fine-grain ones at low ΔK.