Study on the Static Recrystallization Behavior of Thermal Deformation of Austenitic Stainless Steel for Nuclear Power

Jie Liu; Guang Wei Fan; Pei De Han; Jian Feng Yang; Jian Sheng Liu; Dong Sheng Ge; Guan Jun Qiao

doi:10.4028/www.scientific.net/MSF.658.165

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HomeMaterials Science ForumMaterials Science Forum Vol. 658Study on the Static Recrystallization Behavior of...

Study on the Static Recrystallization Behavior of Thermal Deformation of Austenitic Stainless Steel for Nuclear Power

Abstract:

Dual-interval compression test was carried out with Gleeble-1500D thermal simulation testing machine on the 304 austenitic stainless steel used for nuclear power. The first-interval strain was 0.3, and the second 0.05, and the dual-interval strain rates is 0.1s-1, dual-interval temperatures of thermal deformation were 950°C, 1000°C, and 1050°C respectively. The softening behavior with thermal deformation at different temperatures and time intervals was studied. It was shown in the study that the occurrence of static softening was very easy for the material; the activation energy for static recrystallization Qrex was 383.45 kJ / mol in case of true strain of 0.3 and strain rate of 0.1s-1.