Effect of Heat Treatment on the Microstructure and Properties of IMI 685

Blenkinsop, P. A.; Neal, D. F.; Goosey, R.E.

doi:10.1007/978-1-4757-1758-7_36

Cited by 8 publications

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“…For conventional titanium alloys, most studies on creep behavior in recent years have been performed on near-c( alloys, such as Ti-6242S6) and IMI 685,7) andhave shownthat the creep resistance of such alloys is strongly dependent on microstructure. It was found, in these and other studies,8.9) phase.…”

Section: Introductionmentioning

confidence: 99%

Creep of .ALPHA.2+.BETA. Titanium Aluminide Alloys.

Thompson

Pollock

1991

ISIJ International

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The interest in titanium aluminide alloys includes elevated temperature applications, for which creep resistanc~i s a primary property. Tests have been madebetween 650 and 870'C on a variety of microstructures of Ti-24Al-1 1 Nb and Ti-25Al-10Nb-3M0-1V (ato/o) where i* is the steady-state creep rate at a tensile stress cr, n and A are constants, Q, is the apparent activation energy. R the gas constant, and T the absolute temperature. Therefore, plotting log of steady-state creep rate vs. Iog a will result in a straight line with a slope equal to n, the power-1aw exponent.25~27)The results for the role of microstructure for both Ti-24-11 and Ti-25-10-3-1 can be illustrated with the two examples in Fig. 3 From Ref, 16 Temperature Dependence In addition to the stress exponent n, the apparent activation energy Q, is considered helpful29,35) in establishing the controlling mechanismof creep deformation.In Fig. 5

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Section: Introductionmentioning

confidence: 99%