Towards Simulation of Dislocation-Based Creep Mechanisms: Application to Oxide Dispersion Strengthening Steels. (2015)

• Record Type: Journal Article
• Authors: Robertson, C.; Poissonnet, S.; Panigrahi, B.K.; Sundar, C.S.
• Is Part Of: Procedia engineering. Volume 130(2015)
• Page Start: 1105
• Page End: 1109
• Publication Date: 2015
• Subjects: Diffusion -- dislocation -- creep -- climb -- nano-indentation; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.12.273
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: This paper presents an experimental study on the micro-creep response of a model Oxide Dispersion Strengthening (ODS) ferritic steel, using high temperature nano-indentation testing. The results are interpreted using a theoretical approach based on different dislocation climb mechanisms, accounting for the present testing conditions: high stress and high dislocation density. This work is regarded as a first step towards implementation of dislocation-based creep mechanisms in advanced dislocation dynamics simulations.