| 新型贝氏体板簧钢的组织及性能 |
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| 引用本文： | 蒋文淼,胡志华,栾道成,张旭,凌俊华,阴志铭,李缘,周新宇,王正云.新型贝氏体板簧钢的组织及性能[J].金属热处理,2022,47(7):151-155. |
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| 作者姓名： | 蒋文淼 胡志华 栾道成 张旭 凌俊华 阴志铭 李缘 周新宇 王正云 |
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| 作者单位： | 西华大学 材料科学与工程学院, 四川 成都 610039 |
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| 基金项目： | 四川省科技支撑项目(20ZDYF2461, 20ZDZX0042);西华大学重点科研基金(Z203121);西华大学创新基金(YCJJ2021033) |
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| 摘 要： | 针对汽车减重和环保问题,自行设计研制了车用新型贝氏体板簧钢,并对其组织和力学性能进行研究。结果表明,该钢经正火热处理即可得到无碳贝氏体组织;XRD检测表明,其物相组成以α相为主;该钢具有优良的综合力学性能和耐腐蚀性能,屈服强度近1200 MPa,抗拉强度达1400 MPa,常温下,冲击吸收能量达到73.2 J以上,强韧性配比优异。
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| 关 键 词： | 贝氏体钢 汽车板簧 显微组织 韧性 硬度 |
| 收稿时间： | 2022-02-09 |
Microstructure and properties of new type bainitic leaf spring steel |
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| Jang Wenmiao,Hu Zhihua,Luan Daocheng,Zhang Xu,Ling Junhua,Yin Zhiming,Li Yuan,Zhou Xinyu,Wang Zhengyun.Microstructure and properties of new type bainitic leaf spring steel[J].Heat Treatment of Metals,2022,47(7):151-155. |
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| Authors: | Jang Wenmiao Hu Zhihua Luan Daocheng Zhang Xu Ling Junhua Yin Zhiming Li Yuan Zhou Xinyu Wang Zhengyun |
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| Affiliation: | School of Materials Science and Engineering, Xihua University, Chengdu Sichuan 610039, China |
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| Abstract: | Aiming at the problems of automobile weight reduction and environmental protection, a new type of bainitic leaf spring steel for automobiles was designed and developed, and the microstructure and mechanical properties were studied. The results show that the carbide-free bainitic microstructure of the steel can be obtained by normalizing. XRD test results show that its phase composition is dominated by α phase; The steel has excellent comprehensive mechanical properties and corrosion resistance, with yield strength of nearly 1200 MPa, tensile strength of 1400 MPa, impact absorbed energy of 73.2 J or more at room temperature, and excellent match of strength and toughness. |
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| Keywords: | bainitic steel automobile leaf spring microstructure toughness hardness |
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