An investigation of the small fatigue crack growth behavior in Ti-6.5Al-2Zr-1Mo-1V alloy

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• 作者：Junhui Tao ; Longbo Ji ; Shubing Hu ; ^{13871598078@163.com} ; ^{187352581@qq.com}
• 关键词：Ti-6.5Al-2Zr-1Mo-1V ; Small fatigue crack ; Crack growth behavior
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2764-2772
• 全文大小：3012 K
• 卷排序：695

文摘

A knee point appears in the fatigue crack growth rate curve of the small fatigue crack in Ti-6.5Al-2Zr-1Mo-1V alloy. At the knee point, the crack fracture mode transitions from a crystallographic faceted fracture to a striation type. Before the knee point, the crack growth mode change causes a zigzag crack growth path. After the knee point, the crack growth path transitions from zigzag to linear.