| Gleeble热模拟在S32750奥氏体-铁素体双相钢中的热塑性应用研究 |
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| 引用本文： | 王哨兵,孙文强,王 曼,周 珠,张燕燕.Gleeble热模拟在S32750奥氏体-铁素体双相钢中的热塑性应用研究[J].特殊钢,2022,43(4):5-9. |
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| 作者姓名： | 王哨兵 孙文强 王 曼 周 珠 张燕燕 |
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| 作者单位： | 浙江久立特材科技股份有限公司，湖州313000 |
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| 摘 要： | 利用Gleeble试验机研究S32750双相钢(/%:0.20C,25.50Cr,7.05Ni,3.50Mo,0.28N)区铸态和固溶态柱状晶和等轴晶区在1000～1200℃的热塑性,表明得出该钢的延伸率和断面收缩率在1 100～1 150℃最佳。通过电镜分析,在1000～1 050℃ S32750钢呈脆性断裂,在1 050～1 150℃呈塑性断裂,在1 150～1200℃为沿晶断裂。S32750钢1 000～1 050℃ 时裂纹沿相界,1 150～1 200℃时裂纹沿晶界。综合热模拟试验,确定S32750钢的最佳热塑性温度为1 150～1 200℃。
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| 收稿时间： | 2021-11-04 |
Application of Gleeble Thermal Simulation for Hot Plasticity of S32750 Austenito-Ferrite Duplex Steel |
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| WANG Shaobing,SUN Wenqiang,WANG Man,ZHOU Zhu,ZHANG Yanyan.Application of Gleeble Thermal Simulation for Hot Plasticity of S32750 Austenito-Ferrite Duplex Steel[J].Special Steel,2022,43(4):5-9. |
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| Authors: | WANG Shaobing SUN Wenqiang WANG Man ZHOU Zhu ZHANG Yanyan |
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| Affiliation: | Zhejiang Jiuli Hi-Tech Metals Co Ltd, Huzhou 313000 |
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| Abstract: | The hot plasticity of S32750 dual phase steel (/% ：0. 20C,25. 50Cr,7. 05Ni,3. 50Mo,0. 28N) casting and solid-solution condition columnar zone and equiaxed zone at 1 000 ~ 1 200℃ is studied by Gleeble thermal. The results obtained elongation and reduction of area of the steel at 1 100 - 1 150 °C are best. With the analyzed by SEM, the S32750 steel is brittle fracture at 1 000 〜1 050 ℃,tough fracture at 1 050 ~ 1 150 ℃. and intergranular failure at 1 150 - 1 200 ℃. And the crack of S32750 steel is along interphase at 1 000 ~ 1 050 ℃ , and along intergranular boundaryat 1 150-1 200 °C. The optimum thermoplastic temperature of S32750 steel is determined to be 1 150-1 200 ℃ by integrating the thermal simulation test. |
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