| 返红温度对钒钛微合金非调质钢45MnVTi组织性能的影响 |
| |
| 引用本文： | 薛伟江,屈小波,王军,包耀宗.返红温度对钒钛微合金非调质钢45MnVTi组织性能的影响[J].特殊钢,2021,42(6):83-86. |
| |
| 作者姓名： | 薛伟江 屈小波 王军 包耀宗 |
| |
| 作者单位： | 1江苏永钢集团有限公司，张家港 215628；
2钢铁研究总院，北京 100081 |
| |
| 摘 要： | 试验研究了Φ52 mm 45MnVTi钢终轧917~922 ℃水冷返红680~830 ℃的组织和力学性能。结果表明，随着返红温度的降低，钢材的屈服强度及抗拉强度不同程度的升高，韧性先升高再降低，组织类型为铁素体和珠光体。当返红温度750～770 ℃时，钢材组织为均匀细小的铁素体和珠光体组织，且试验钢的珠光体片间距平均2.39 μm；钢材的抗拉强度平均841 MPa，屈服强度平均547.5 MPa，平均冲击功50.5 J，强韧性匹配最佳，满足使用要求。
|
| 收稿时间： | 2021-04-12 |
Effects of Self-Tempering Temperature on Microstructure and Performance of Vanadium and Titanium Microalloyed 45MnVTi Non Quenched and Tempered Steel |
| |
| Xue Weijiang,Qu Xiaobo,Wang Jun,Bao Yaozong.Effects of Self-Tempering Temperature on Microstructure and Performance of Vanadium and Titanium Microalloyed 45MnVTi Non Quenched and Tempered Steel[J].Special Steel,2021,42(6):83-86. |
| |
| Authors: | Xue Weijiang Qu Xiaobo Wang Jun Bao Yaozong |
| |
| Affiliation: | 1 Jiang Su Yong Gang Group Co Ltd,Zhangjiagang 215628;
2 Central Iron and Steel Research Institute,Beijing100081 |
| |
| Abstract: | The structure and mechenical properties of Φ52 mm 45MnVTi steel finished rolling at 917～922 ℃ and water-cooling-self-tempering with 680～830 ℃have been tested and researched.Results show that the microstructure of asprepared steel consists of ferrite and pearlite,with the decrease of self-tempering temperature,the yield strength and tensile strength of steel gradually increase,and toughness increases at first and then decreases. When the range of self-tempering temperature is 750 to 770 ℃,the microstructure of steel products is fine ferrite and pealite, and the test steel average value of tensile Strength 841 MPa,yield Strength 547.5 MPa,impact energy 50.5 J with an optimal match between the strength and toughness of steel and pearite lamellar spacing 2.39 μm,to meet the use requirements. |
| |
| Keywords: | |
|
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载全文 |
|
