Effects of thermomechanical processing on microstructure and properties of bainitic work hardening steel

Jie Cao; Jun Yan; Jing Zhang; Tongren Yu

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Effects of thermomechanical processing on microstructure and properties of bainitic work hardening steel

机译：热机械加工对贝氏体淬火钢组织和性能的影响

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The thermomechanical processing (TMP) of a bainitic work hardening steel was carried out on a Glee-ble3500 simulator. The microstructure of processed specimens was investigated by means of optical and electron microscopy, and tensile tests were performed in a ZwickRoell tensile tester. The deformation temperatures of austenite varied from 800 ℃ to 900 ℃. The cooling methods include single rate cooling method and two-stage cooling method. The two-stage cooling method includes fast cooling rates ranging from 4 ℃/s to 12 ℃/s and slow cooling rates ranging from 1 ℃/s to 2 ℃/s. It is shown that, within the range of parameters tested, the obtained microstructures are granular bainite, the tensile strength of the steel can be adjusted from 897.8 MPa to 1083.2 MPa, and good plasticity can be obtained at different strength levels.

机译：贝氏体淬火钢的热机械加工（TMP）在Glee-ble3500仿真器上进行。通过光学和电子显微镜研究了加工样品的微观结构，并在ZwickRoell拉伸测试仪中进行了拉伸测试。奥氏体的变形温度在800℃至900℃之间变化。冷却方法包括单速冷却方法和两阶段冷却方法。两阶段冷却方法包括4℃/ s至12℃/ s的快速冷却速度和1℃/ s至2℃/ s的缓慢冷却速度。结果表明，在所测试的参数范围内，所得组织为粒状贝氏体，钢的拉伸强度可从897.8 MPa调节至1083.2 MPa，在不同强度水平下均可获得良好的塑性。

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来源
《Materials Science and Engineering》 |2015年第15期|192-197|共6页
作者
Jie Cao; Jun Yan; Jing Zhang; Tongren Yu;
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作者单位

School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan 243002, China;

School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan 243002, China;

School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan 243002, China;

Technology Center, Maanshan Iron & Steel Company Limited, Ma'anshan 243000, China;

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正文语种 eng
中图分类
关键词
Work hardening steel; Thermomechanical processing; Granular bainite; Mechanical properties;

机译：工作硬化钢;热机械加工;颗粒贝氏体;机械性能;

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Effects of thermomechanical processing on microstructure and properties of bainitic work hardening steel

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