A method for synergistically reducing retained austenite and residual stresses in a d406a steel
By employing a synergistic approach involving normalizing, preheating, rolling quenching, tempering, and tensile deformation, the problems of residual austenite and stress in D406A steel after heat treatment were solved, achieving high precision and high strength in the material.
CN122279150APending Publication Date: 2026-06-26GUIZHOU UNIV
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUIZHOU UNIV
- Filing Date
- 2026-01-08
- Publication Date
- 2026-06-26
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Figure CN122279150A_ABST
Abstract
This invention discloses a method for synergistically reducing residual austenite and residual stress in D406A steel, belonging to the field of steel material processing technology. This invention reduces residual austenite and residual stress in D406A steel through normalizing, preheating, rolling quenching, tempering, and tensile deformation. Ring rolling easily generates significant residual stress, leading to reduced material strength and toughness, and decreased dimensional accuracy of ring-shaped parts. This method can efficiently and accurately reduce residual stress and unstable residual austenite, and has applications in aerospace, missile casings, and high-strength structural components.
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