Mixed mode crack growth in a gamma titanium aluminide alloy

被引：0

作者：

John, R ^{[1
]}

Rosenberger, AH ^{[1
]}

DeLuca, D ^{[1
]}

Porter, WJ ^{[1
]}

Li, KZ ^{[1
]}

机构：

[1] USAF, Res Lab, Mat & Mfg Directorate, MLLN, Wright Patterson AFB, OH 45433 USA

来源：

GAMMA TITANIUM ALUMINIDES 1999 | 1999年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The results of an investigation of mixed mode (mode I and mode II) loading on the crack growth behavior of a gamma titanium aluminide (TiAl) alloy are discussed. A centrally notched disk specimen was used, and the tests were conducted at room temperature. Mixed mode loading conditions were achieved by orienting the machined flaw at different angles to the loading axis. A specimen with large (approximate to 5 mm) grains was used to characterize the interlamellar growth under mixed mode loading conditions. Preliminary results indicate that interlamellar mixed mode crack growth rate is approximate to 10-100X faster than the transgranular mode I long crack growth rate and up to approximate to 10X faster than small crack growth rate.

引用

页码：535 / 540

页数：6

共 14 条

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