Achieving 1.7 GPa Considerable Ductility High-Strength Low-Alloy Steel Using Hot-Rolling and Tempering Processes

被引：1

作者：

Geng, Haoyu ^{[1
]}

Sun, Xiangyu ^{[1
]}

Guo, Xingsen ^{[2
]}

Zhao, Yajun ^{[1
]}

Yin, Xingjie ^{[1
]}

Du, Zhiming ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Zhangjiakou Sanxin Tongda Machinery Mfg Co Ltd, Zhangjiakou 076250, Peoples R China

来源：

MATERIALS | 2024年 / 17卷 / 18期

关键词：

high-strength low-alloy steel; hot rolling; tempering; martensitic transformation; strengthening mechanism; CARBON MARTENSITE; MICROSTRUCTURE; BEHAVIOR; FERRITE; TRANSFORMATION; AUSTENITE; EVOLUTION; SILICON;

D O I：

10.3390/ma17184495

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To achieve a balanced combination of high strength and high plasticity in high-strength low-alloy (HSLA) steel through a hot-rolling process, post-heat treatment is essential. The effects of post-roll air cooling and oil quenching and subsequent tempering treatment on the microstructure and mechanical properties of HSLA steels were investigated, and the relevant strengthening and toughening mechanisms were analyzed. The microstructure after hot rolling consists of fine martensite and/or bainite with a high density of internal dislocations and lattice defects. Grain boundary strengthening and dislocation strengthening are the main strengthening mechanisms. After tempering, the specimens' microstructures are dominated by tempered martensite, with fine carbides precipitated inside. The oil-quenched and tempered specimens exhibit tempering performance, with a yield strength (YS) of 1410.5 MPa, an ultimate tensile strength (UTS) of 1758.6 MPa, and an elongation of 15.02%, which realizes the optimization of the comprehensive performance of HSLA steel.

引用

页数：15

共 51 条

[1] DEFORMATION OF PLASTICALLY NON-HOMOGENEOUS MATERIALS [J].

ASHBY, MF .

PHILOSOPHICAL MAGAZINE, 1970, 21 (170) :399-&

[2] The effect of bainite morphology on the mechanical properties of a high bainite dual phase (HBDP) steel [J].

Bakhtiari, R. ;

Ekrami, A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 525 (1-2) :159-165

[3] Nanoprecipitation in bearing steels [J].

Barrow, A. T. W. ;

Rivera-Diaz-del-Castillo, P. E. J. .

ACTA MATERIALIA, 2011, 59 (19) :7155-7167

[4]

Bilal MM, 2019, J MATER RES TECHNOL, V8, P5194, DOI 10.1016/j.jmrt.2019.08.047

[5] Use of EBSD technique to examine microstructure and cracking in a bainitic steel [J].

Bouyne, E ;

Flower, HM ;

Lindley, TC ;

Pineau, A .

SCRIPTA MATERIALIA, 1998, 39 (03) :295-300

[6] Multiphase microstructure formation and its effect on fracture behavior of medium carbon high silicon high strength steel [J].

Chen, Kui ;

Li, Huabing ;

Jiang, Zhouhua ;

Liu, Fubin ;

Kang, Congpeng ;

Ma, Xiaodong ;

Zhao, Baojun .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 72 (72) :81-92

[7] Effect of quenching and tempering temperature on microstructure and tensile properties of microalloyed ultra-high strength suspension spring steel [J].

Chen, Kui ;

Jiang, Zhouhua ;

Liu, Fubin ;

Yu, Jia ;

Li, Yang ;

Gong, Wei ;

Chen, Changyong .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 766

[8] Dense M2 high speed steel containing core-shell MC carbonitrides using high-energy ball milled M2/VN composite powders [J].

Chen, Nan ;

Luo, Ren ;

Xiong, Huiwen ;

Li, Zhiyou .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 771

[9] Crystallography of transformation products with different cooling rates in low-carbon alloy steel and its effect on low-temperature toughness uniformity of heavy plates [J].

Chen, Qi-Yuan ;

Zhang, Wei-Na ;

Wang, Peng-Jie ;

Mao, Qi-Jia ;

Liu, Zhen-Yu .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 28 :2077-2085

[10] Effect of quenching and tempering treatments on microstructure and mechanical properties of 300M ultra-high strength steel fabricated by laser powder bed fusion [J].

Dong, Yuang ;

Lan, Xinqiang ;

Yang, Siqi ;

Lu, Jingxiang ;

Yan, Siyu ;

Wei, Kaiwen ;

Wang, Zemin .

MATERIALS CHARACTERIZATION, 2024, 212

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