EFFECT OF β-FLECK ON MECHANICAL PROPERTIES OF Ti-10V-2Fe-3Al ALLOY

Acta Metall Sin

1992, Vol. 28

Issue (12): 23-28 DOI:

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EFFECT OF β-FLECK ON MECHANICAL PROPERTIES OF Ti-10V-2Fe-3Al ALLOY

ZHOU Yigang; YU Hanqing; ZENG Weidong (Northwestern Polytechnical University; Xi'an)TANG Jialing (Chinese Aviation South Power Machine Company; Zhuzhou)

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ZHOU Yigang; YU Hanqing; ZENG Weidong (Northwestern Polytechnical University; Xi'an)TANG Jialing (Chinese Aviation South Power Machine Company; Zhuzhou). EFFECT OF β-FLECK ON MECHANICAL PROPERTIES OF Ti-10V-2Fe-3Al ALLOY. Acta Metall Sin, 1992, 28(12): 23-28.

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Abstract

Effect of β-fleck on properties of tensile elongation and low cycle fatigue life at room temperature for Ti-10V-2Fe-3Al alloy has been investigated. The cracks along initial β-grain boundaries in the β-fleck region may propagate to form intergranular brittle fracture. Under alternating load, the β-fleck often becomes a fatigue origin. While under higher strain, the cracks initiate and propagate to fracture early at the original β-grain boundaries in β-fleck region and at α-grain boundaries.

Key words: Ti-10V-2Fe-3Al alloy β-fleck tensile property low cycle fatigue life

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1992/V28/I12/23

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