Ti6321 钛合金动态断裂行为研究

Yanxing Li, Zhe Zhou, Lin Wang*, Huanwu Cheng, Xingwang Cheng

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

4 引用 (Scopus)

摘要

The dynamic three-point bending loading was carried out on Ti6321 titanium alloy to cause mode I (open type) fracture and obtain the waveform curve. Combined with the experimental & numerical method, the mode I crack dynamic fracture properties of Ti6321 titanium alloy with three structures were obtained. The fracture surface morphologies of three kinds of Ti6321 titanium alloys were observed and analyzed by SEM and confocal laser scanning microscope (CLSM). The results show that the Widmanstatten structure has the highest dynamic fracture performance of mode I crack, followed by the bimodal structure, and the equiaxed structure has the lowest dynamic fracture performance. For mode I crack fracture, equiaxed structure and bimodal structure are mainly ductile fracture mechanism, while Widmanstatten structure has the characteristics of partial cleavage fracture. The Widmanstatten structure has the best fracture performance. Because of the largest fluctuation of fracture and the largest specific surface area, the crack propagation needs more energy.

投稿的翻译标题Research on Dynamic Fracture Behavior of Ti6321 Titanium Alloy
源语言繁体中文
页(从-至)953-958
页数6
期刊Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
52
3
出版状态已出版 - 3月 2023

关键词

  • Ti6321 titanium alloy
  • dynamic fracture
  • fracture characteristics
  • mode I crack

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引用此

Li, Y., Zhou, Z., Wang, L., Cheng, H., & Cheng, X. (2023). Ti6321 钛合金动态断裂行为研究. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 52(3), 953-958.