SYMPOSIA PAPER Published: 01 January 1974
STP33121S

Alloy, Texture, and Microstructural Effects on the Yield Stress and Mixed Mode Fracture Toughness of Titanium

Source

The mixed mode fracture toughness, KQ, behavior of alpha-beta titanium alloys was examined in terms of: (1) alloy effects of aluminum, oxygen, and beta stabilizer, (2) processing effects of hot-roll and anneal temperatures, and (3) test direction. In the Ti-4V alloy system, alloying and processing effects interact in their influence on KQ in a complex manner. In the Ti-2Mo alloy system, oxygen depresses KQ after alpha-beta rolling, whereas aluminum has a similar effect after beta rolling; in each case the alloy effect dominates that of yield strength. In the overall analysis, texture as implied by a test direction effect, significantly influences KQ. The oxygen, texture, and microstructural effects on KO were shown by statistical methods to qualitatively parallel findings in the literature on titanium alloys regarding the effects of these variables on KIc.

Author Information

Rosenberg, HW
Henderson Technical Laboratories, TIMET, Henderson, Nev.
Parris, WM
Henderson Technical Laboratories, TIMET, Henderson, Nev.
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Details
Developed by Committee: E08
Pages: 26–43
DOI: 10.1520/STP33121S
ISBN-EB: 978-0-8031-4642-6
ISBN-13: 978-0-8031-0343-6