微合金化热成形钢开发应用进展及展望
Progress and Prospect for Development and Application ofMicroalloying Press-Hardening Steel
摘 要
超高强钢是汽车实现轻量化兼顾安全性的关键材料，1.5 GPa及以上高性能热成形钢的开发和应用是关键。近10 a来，微合金化热成形钢及其零件制造技术迅速发展，实现了高弯曲角度、抗氢脆断裂、高韧性、高淬透性等性能目标，进而提高了车辆的被动安全性能及轻量化水平。综述了微合金化热成形钢开发与使用现状，包括1.5~2.0 GPa级铌、钒、铌钒复合、铌钒（钼）复合微合金化热成形钢的开发和应用进展，以及微合金化对纳米级第二相析出和晶粒细化的影响；微合金化热成形钢的抗氢脆性能和机理；微合金化热成形钢的尖角冷弯性能及其对碰撞安全性能的影响；微合金化热成形钢的断裂失效性能。对今后微合金化热成形钢的生产制造与应用前景作出展望。
铌微合金化
氢脆
韧性
弯曲角
断裂卡片
hot-stamping
Nb microalloying
hydrogen embrittlement
toughness
bending angle
fracture card
Abstract
Ultra-high strength steels are important materials for the lightweight and safety of motor vehicles. The development and application of 1.5 GPa and above grade high-performance press-hardening steel are the key. In recent 10 a, the manufacturing technology of microalloying press-hardening steels and their parts have developed rapidly, achieving the performance such as high bending angles, hydrogen embrittlement resistance, high toughness and high hardenability; therefore the passive safety performance and lightweight of vehicles are improved. The development and application status of microalloying press-hardening steels are summarized, including the development and application of 1.5-2.0 GPa grade Nb microalloying, V microalloying, Nb-V composite microalloying and Nb-V(Mo) composite microalloying press-hardening steels, and the effects of microalloying on the nanoscale second phase precipitation and grain refinement; the hydrogen embrittlement resistance and its mechanism of microalloying press-hardening steels; the sharp corner cold bending property of microalloying press-hardening steels and its influence on the collision safety performance; the fracture failure performance of microalloying press-hardening steels. The manufacture and application of microalloying press-hardening steels in the future are also prospected.
中图分类号 TG142.1 DOI 10.11973/jxgccl202012001
所属栏目 综述
基金项目
收稿日期 2020/8/18
修改稿日期 2020/11/12
网络出版日期
作者单位点击查看
备注路洪洲(1981-),男,黑龙江大庆人,教授级高级工程师,博士
引用该论文: LU Hongzhou,ZHAO Yan,FENG Yi,MA Mingtu,BIAN Jian,LIU Yonggang,GUO Aimin. Progress and Prospect for Development and Application ofMicroalloying Press-Hardening Steel[J]. Materials for mechancial engineering, 2020, 44(12): 1～10
路洪洲,赵岩,冯毅,马鸣图,边箭,刘永刚,郭爱民. 微合金化热成形钢开发应用进展及展望[J]. 机械工程材料, 2020, 44(12): 1～10
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【12】周文强,毕玉梅,邢阳,等.高强度钢板WHF1500H热成形微观组织和力学性能研究[J].金属材料与冶金工程,2017,45(增刊1):11-16.
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【19】胡宽辉.2000 MPa级高强塑积热成形钢的研究[D].武汉:武汉科技大学,2019.
【20】陈菲.含钒1500 MPa热冲压成型钢的组织与性能研究[D].唐山:华北理工大学,2019.
【21】闻玉辉,朱国明,郝亮,等.Nb-Ti微合金化热冲压成形用钢的微观组织与力学性能[J].工程科学学报,2017,39(6):859-866.
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【25】中信微合金化技术中心,中国汽车工程研究院股份有限公司.中国汽车EVI及高强度钢氢致延迟断裂研究[M].北京:北京理工大学出版社,2018.
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【27】MOHRBACHER H,SENUMA T.Alloy optimization for reducing delayed fracture sensitivity of 2000 MPa press hardening steel[J].Metals, 2020,10(7):853.
【28】杨海根,赵征志,杨源华,等.1800 MPa级冷轧热成形钢的组织与性能[J].材料热处理学报,2017,38(7):120-125.
【29】CHANG Z Y, LIU Z Y, LIU H L, et al. Microstructures and mechanical properties of an ultra-fine grained 2 GPa press-hardening steel[C]//6th International Conference on Advanced Steels. Jeju, Korea:Korean Federation of Science & Technology Societies, 2018:93.
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【31】JIAN B,WANG L,MOHRBACHER H,et al.Development of niobium alloyed press hardening steel with improved properties for crash performance[J].Advanced Materials Research, 2014,1063:7-20.
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