汽车用非调质钢的发展现状及趋势

刘年富; 沈伟; 田钱仁; 付建勋

doi:10.7513/j.issn.1004-7638.2024.02.017

汽车用非调质钢的发展现状及趋势

doi: 10.7513/j.issn.1004-7638.2024.02.017

刘年富^{1, 2,},
沈伟¹,
田钱仁¹,
付建勋^1, ,

1.
上海大学先进凝固技术中心, 省部共建高品质特殊钢国家重点实验室, 上海 200444
2.
宝武杰富意特殊钢有限公司, 广东韶关 512123

基金项目: “十三五”国家重点研发专项（2018YFB0704403）。

详细信息

作者简介:
刘年富，1981年出生，男，广西贺州人，博士研究生，高级工程师，研究方向：高品质特殊钢， E-mail: A28285@baosteel.com

通讯作者:
付建勋，1969年出生，男，河南焦作人，博士，教授，研究方向：高品质特殊钢， E-mail: fujianxun@shu.edu.cn

中图分类号: TF76,TG142
计量
- 文章访问数: 514
- HTML全文浏览量: 213
- PDF下载量: 41
- 被引次数: 0
出版历程
- 收稿日期: 2023-01-16
- 网络出版日期: 2024-04-30
- 刊出日期: 2024-04-30

Overview of non-quenched and tempered steel for automotive

Liu Nianfu^{1, 2
,},
Shen Wei¹,
Tian Qianren¹,
Fu Jianxun^{1
, ,}

1.
Center for Advanced Solidification Technology (CAST), State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China
2.
Baowu JFE Special Steel Co., Ltd., Shaoguan 512123, Guangdong, China

摘要

摘要: 分析了国内外非调质钢在汽车零部件领域的发展历程及现状，重点分析了非调质钢的强韧化技术措施、硫化物形态和分布的控制技术，以及材料偏析的控制措施。非调质钢强韧化主要通过成分及生产工艺优化和组织优化两个途径实现，硫化物形态和分布可以从冶炼、凝固和轧制等过程进行调控，硫化物偏析可以从凝固过程和连铸工艺进行改善。未来，随着非调质钢市场的发展及品种需求的进一步提升，非调质钢将向着多品种化、微合金高强化、易切削化、高速化及高可靠性方向进一步发展。
- 汽车用钢 /
- 非调质钢 /
- 组织 /
- 强韧化 /
- 硫化物
Abstract: In this paper the development history and status quo of non-quenched and tempered steel for making auto parts worldwidely had been described, and the technologies such as strengthening & toughening, sulfide form and distribution control, and material segregation control had been highlighted. The strength and toughening of non-quenched and tempered steel are mainly realized through two approaches: composition and production process optimization and microstructure optimization. Sulfide morphology and distribution can be regulated from smelting, solidification, and rolling processes, and sulfide segregation can be improved from solidification process and continuous casting process. In the future, with the development of the non-quenched and tempered steel market and the further improvement of variety demand, non-quenched and tempered steel will further develop in the direction of multi-variety, micro-alloying high strengthen, easy cutting, high speed, and high reliability.
- automobile steel /
- non-quenched and tempered steel /
- microstructure /
- strengthening and toughening /
- sulfide

HTML全文

图 1 不同强度级别非调质钢的强韧性匹配情况^[16]

Figure 1. Matching situation of strength and toughness of different strength grades of non-quenched and tempered steel

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图 2 国外汽车零部件用非调质钢相关专利年度申请数量变化分析

Figure 2. Analysis of changes in the number of annual patent applications related to non-quenched and tempered auto parts in foreign countries

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图 3 2012~2018年我国非调质钢用量及占比情况^[20]

Figure 3. The consumption and proportion of non-quenched and tempered steel in China from 2012 to 2018

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图 4 国内汽车零部件用非调质钢相关专利各年份申请数量分析

Figure 4. Analysis of changes in the number of annual patent applications related to non-quenched and tempered for auto parts in China

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图 5 V-N钢晶粒细化原理^[16]

Figure 5. The grain refinement principle of the V-N steel

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图 6 硫化物形状对切削性能的影响^[32]

Figure 6. The influence of sulfide shape on cutting performance

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图 7 汽车曲轴产生的磁痕缺陷^[33]

（a）具体部位；（b）金相分析

Figure 7. The magnetic mark defects of automobile crankshafts

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图 8 某厂C70S6非调质钢铸坯三个位置处硫偏析

（a）边部；（b）1/4处；（c）芯部

Figure 8. Sulfur segregation at three positions of C70S6 non-quenched and tempered steel casting billet of a plant

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图 9 非金属夹杂物种类和尺寸对疲劳性能的影响^[33]

Figure 9. Influence of the type and size of non-metallic inclusions on fatigue performance of non-quenched and tempered steel

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图 10 含硫钢凝固分率与温度的关系^[50]

Figure 10. Relationship between solidification rate and temperature of sulfur-containing steel

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表 1 国外生产的非调质钢代表钢种及成分性能情况

Table 1. Steel grade and composition properties of typical non-quenched and tempered steel produced abroad

产地	代表钢种	主要成分/%							用途	强度级别/MPa
产地	代表钢种	C	Si	Mn	S	V	Ti	N	用途	强度级别/MPa
德国	49MnVS3	0.47	0.20	0.85	0.050	0.10		0.014	曲轴	850
	C70S6	0.70	0.20	0.50	0.060	0.03		0.015	连杆	900
	38MnVS6	0.38	0.65	1.40	0.030	0.10		0.017	活塞	850
美国	44MnSiVS6	0.44	0.65	1.45	0.025	0.16	0.015	0.017	曲轴	950
瑞典	V-2906	0.45	0.30	0.70	0.050	0.10		0.017	曲轴	850
瑞典	V-2908	0.38	0.55	1.40	0.050			0.016	曲轴	800
日本	S38CMS1	0.38	0.55	1.45	0.060			0.014	曲轴	800
	SVh40C	0.40	0.20	0.75	0.020	0.05		0.010	曲轴	800
	36MnVS4	0.38	0.65	1.00	0.070	0.25		0.017	连杆	950

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表 2 国外汽车零部件用非调质钢相关专利主要申请人分析

Table 2. Analysis of the main applicants for foreign patents related to non-quenched and tempered steel for auto parts

申请人	专利数/个
日本制铁株式会社	127
大同特殊钢株式会社	54
株式会社神户制钢所	50
JFE钢铁株式会社	30
韩国现代汽车公司	25
本田技研工业株式会社	18
安塞乐米塔尔	18
日本爱知制钢株式会社	18
丰田自动车株式会社	17
日产自动车株式会社	17

下载: 导出CSV

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