| 基于温变形耦合逆相变细化铁素体制备 |
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| 引用本文： | 王志豪,李红斌,刘立涛.基于温变形耦合逆相变细化铁素体制备[J].金属热处理,2023,48(4):35-39. |
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| 作者姓名： | 王志豪 李红斌 刘立涛 |
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| 作者单位： | 1.华北理工大学 冶金与能源学院, 河北 唐山 063210;2.河北津西钢铁集团股份有限公司, 河北 唐山 064302 |
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| 基金项目： | 河北省自然科学基金高端钢铁冶金联合基金(E2020209040);华北理工大学生创新项目(X2021325) |
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| 摘 要： | 采用Gleeble-3500热模拟试验机进行650℃多道次温变形以研究某中碳钢奥氏体及铁素体晶粒的细化，并利用OM、TEM和EBSD等检测手段进行表征。结果表明，650℃下6道次的快速压缩变形(总应变为2.6)后有逆转变发生，所得奥氏体晶粒平均尺寸为3.4μm;再在10℃/s的速率冷却到600℃,可以形成平均晶粒尺寸为0.64μm的铁素体，且渗碳体呈粒状分布于基体之上。
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| 关 键 词： | 中碳钢 温变形 形变诱发逆转变 晶粒细化 粒状渗碳体 |
| 收稿时间： | 2022-10-18 |
Ferrite refinement preparation based on coupling of warm deformation and reversal transformation |
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| Wang Zhihao,Li Hongbin,Liu Litao.Ferrite refinement preparation based on coupling of warm deformation and reversal transformation[J].Heat Treatment of Metals,2023,48(4):35-39. |
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| Authors: | Wang Zhihao Li Hongbin Liu Litao |
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| Affiliation: | 1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan Hebei 063210, China;2. Hebei Jinxi Iron & Steel Group Co., Ltd., Tangshan Hebei 064302, China |
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| Abstract: | Refinements of austenite and ferrite grains in a medium carbon steel were studied by multi-pass warm deformation at 650 ℃ by Gleeble-3500 thermal simulation machine, and characterized by OM, TEM and EBSD. The results show that the 6-passes high strain rate compressive deformation induces austenite reversal transformation, and the mean grain diameter of austenite is 3.4 μm. During cooling down to 600 ℃ at a rate of 10 ℃/s, the ferrite with mean grain diameter of about 0.64 μm is formed from the reversed austenite, and the cementite particles are distributed in the ferrite matrix. |
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| Keywords: | medium carbon steel warm deformation reversal transformation induced by deformation grain refinement spheroidized cementite |
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