Elimination of dual slope from the coffin-manson relationship of low-cycle fatigue in the titanium alloy timetal 834, by cold rolling

Elimination of dual slope from the coffin-manson relationship of low-cycle fatigue in the titanium alloy timetal 834, by cold rolling

Cold rolling of the titanium alloy Timetal 834 was found to cause marked enhancement in low-cycle fatigue (LCF) life at low strain amplitude and to eliminate bilinear behavior from the Coffin-Manson (C-M) relationship. It was due to work hardening of surface grains of soft orientation and consequent...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2007-08, Vol.38 (8), p.1868-1871
Hauptverfasser: SAI SRINADH, K. V, SINGH, Vakil
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cold rolling
Crack initiation
Exact sciences and technology
Fatigue
Forming
Gas turbines
Jet engines
Materials fatigue
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metallurgy
Metals. Metallurgy
Production techniques
Rolling
Tensile strength
Titanium alloys
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Zusammenfassung:Cold rolling of the titanium alloy Timetal 834 was found to cause marked enhancement in low-cycle fatigue (LCF) life at low strain amplitude and to eliminate bilinear behavior from the Coffin-Manson (C-M) relationship. It was due to work hardening of surface grains of soft orientation and consequent increase in resistance of the material against crack initiation. The observed effect was not associated with texture. [PUBLICATION ABSTRACT]
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-007-9229-z