不同温度下BZ-11准贝氏体钢性能与组织的研究

Mechanical Properties and Microstructure of Meta-bainite Steel at Different Temperatures

研究了准贝氏体钢和20钢在不同温度下的组织和力学性能。结果表明,BZ 11准贝氏体钢在20～450℃的抗拉强度变化不大,超过450℃随着拉伸温度的升高变形抗力减少;在900℃拉伸时,准贝氏体钢变形抗力与20钢变形抗力相当,说明准贝氏体钢具有良好的高温变形能力。

Mechanical properties and microstructure of metabainite (BZ11) and 20 steel were studied at different temperatures. The results show that the tensile strength of BZ11 steel is the same in the temperature range from 20℃ to 450℃. The resistance to deformation decreases with the rising temperature after 450℃. The resistance to deformation of BZ11 steel is the same as the value of 20 steel at 900℃ and metabainite steel has excellent plastic deformation properties.