|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical and Creep Behavior of Advanced Materials: A SMD Symposium Honoring Prof. K. Linga Murty
||Effect of Dynamic Strain Aging on Creep in Titanium Alloys
||Priyanka Agrawal, S. Karthikeyan, Dipankar Banerjee
|On-Site Speaker (Planned)
We explore in this presentation the interaction between dynamic strain aging and creep in titanium. Tensile tests were used to determine the strain rate domain of dynamic strain aging and PLC in a creep resistant, near alpha titanium alloy IMI 834 over the temperature range 350-500°C. Creep behaviour of the alloy was explored over this temperature regime. Anomalous primary creep behaviour has been observed in the form of abrupt decreases in strain rate beyond certain critical strains, as well as in instantaneous strain rates on loading. Creep behaviour also exhibited a large tension-compression asymmetry. Dislocation structure in primary creep was characterised and this revealed the preponderance of jogged-screw dislocations at small creep strains. A model for creep based upon the interaction of solute atmospheres with dislocations within the framework of a jogged screw dislocation model for creep has been developed.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)