High-temperature fracture toughness of high Nb-containing TiAl alloys

The fracture toughness of a nearly lamellar Ti-45Al-8Nb-0.2W-0.2B-0.1Y alloy and a fully lamellar Ti-45Al-7Nb-0.2W-0.2Hf-0.3B-0.15 C alloy at 750℃ was investigated by prefabricating a fatigue crack in the compact tension(CT) specimen,and the corresponding fracture morphologies were observed by optic...

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Bibliographic Details
Published in:工程科学学报
Main Authors: YU Long, SONG Xi-ping, ZHANG Min, JIAO Ze-hui, YU Hui-chen
Format: Article
Language:Chinese
Published: Science Press 2016-03-01
Subjects:
titanium aluminum alloys
fracture toughness
high temperature properties
fatigue cracks
crack initiation
crack propagation
Online Access:http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2016.03.012

Internet

http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2016.03.012

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