Effect of Cold Deformation on Microstructure and Properties ofSanicro 25 Austenitic Heat-Resistant Steel

QIAO Jixin; SHEN Junjie; WANG Xinyu

doi:10.11973/jxgccl202210016

Materials and Mechanical Engineering > 2022 > 46(10): 92-97. > DOI: 10.11973/jxgccl202210016

QIAO Jixin, SHEN Junjie, WANG Xinyu. Effect of Cold Deformation on Microstructure and Properties ofSanicro 25 Austenitic Heat-Resistant Steel[J]. Materials and Mechanical Engineering, 2022, 46(10): 92-97. DOI: 10.11973/jxgccl202210016

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Effect of Cold Deformation on Microstructure and Properties ofSanicro 25 Austenitic Heat-Resistant Steel

1. Tianjin Key Laboratory of Advanced Electromechanical System Design and Intelligent Control, Tianjin 300384, China;
2. National Experimental Teaching Demonstration Center of Mechanical and Electrical Engineering, Tianjin University of Technology, Tianjin 300384, China

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Received Date: May 06, 2021
Revised Date: May 19, 2022

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Abstract

Cold rolling deformation with deformation amounts of 0, 20%, 50% was conducted on Sanicro 25 austenitic heat-resistant steel. The effects of the cold deformation on the microstructure, texture and mechanical properties of the steel were investigated by microstructure observation, electron backscatter diffraction, X-ray diffraction, tensile tests and hardness tests. The results show that no new phases were formed in the test steel during cold deformation under the test conditions. With the increase of cold deformation, the numbers of twins and dislocation density in the test steel were improved. The grain orientation 〈111〉, 〈001〉 of the test steel in the inverse pole figure z direction was unstable orientation. A new {112}〈110〉 texture was produced by cold deformation. With the increase of cold deformation, the strength of Rotated cube {001}〈110〉 and Goss {110}〈001〉 textures of the test steel generally showed a weakening trend, the tensile strength, yield strength and hardness increased, and the ability to resist plastic deformation was weakened.
- Sanicro 25 steel,
- cold deformation,
- microstructure,
- mechanical property,
- texture evolution

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