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

Acta Metallurgica Sinica (English Letters) ›› 1993, Vol. 6 ›› Issue (3): 197-201.

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

Received:1993-06-25 Revised:1993-06-25 Online:1993-06-25 Published:2009-10-10

Abstract

Abstract: Effect of β-flecks on properties of tensile elongation and low cycle.fatigue life at room tern. perature 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

ZHOU Yigang YU Hanqing ZENG Weidong Northwestern Polytechnical University,Xi'an,ChinaTANG Jialin China South Aviation Motive Power and Machinery Company,Zhuzhou,China professor,Department of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China. EFFECT OF β-FLECKS ON MECHANICAL PROPERTIES OF Ti-10V-2Fe-3Al ALLOY[J]. Acta Metallurgica Sinica (English Letters), 1993, 6(3): 197-201.

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

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