Critical Condition of Dynamic Recrystallization of IN690 Using Strain Hardening Rate

Abstract:

It had been studied that thermal deformation properties of super-alloy Inconel690(IN690) by thermal simulation on Gleeble 3800 Simulator, which the ranges of temperature was 1000～1200°Cand strain rates was 1.0～80/s. According to the experiment data, the critical conditions of super-alloy Inconel690 had been researched by strain hardening rate. Zener-Hollomn parameters (Z) had been introduced into establish the critical conditions of dynamic recrystallization, such as critical strain and critical stress and peak strain. The results showed that the critical strain model which established using strain hardening rate was in good agreement with that of Sellar’s model.

• Periodical: Applied Mechanics and Materials (Volumes 148-149)
• Pages: 1141-1144
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.148-149.1141
• Online since: December 2011
• Authors: Zhong Tang Wang, Yong Gang Deng, Shi Hong Zhang, Ming Cheng
• Keywords: Critical Condition, Inconel690, Strain Hardening Rate, Superalloy

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