Improvement of hydrogen embrittlement by void formation at coating layers of Sb-added Al-Si-coated hot-press-forming steels

被引：9

作者：

Kim, Selim ^{[1
]}

Song, Sang Yoon ^{[2
]}

Kim, Sang-Heon ^{[3
]}

Kim, Seongwoo ^{[3
]}

Oh, Jinkeun ^{[3
]}

Lee, Byeong-Joo ^{[1
]}

Lee, Sunghak ^{[4
]}

Kim, Nack J. ^{[4
]}

Zargaran, Alireza ^{[4
]}

Sohn, Seok Su ^{[2
]}

机构：

[1] Pohang Univ Sci & Technol, Ctr Adv Aerosp Mat, Pohang 37673, South Korea

[2] Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea

[3] POSCO, Tech Res Labs, Steel Prod Res Grp, Kwangyang 57807, South Korea

[4] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang 37673, South Korea

来源：

CORROSION SCIENCE | 2023年 / 221卷

基金：

新加坡国家研究基金会;

关键词：

Hot-press-forming (HPF) steel; Hydrogen embrittlement (HE); Sb addition; Al-Si coating; Sb-enriched zone; Intrusion and emission of H atoms; HARDENED STEEL; DIFFUSION; SEGREGATION; FRACTURE; DESORPTION; ANTIMONY; MICROSTRUCTURE; PARAMETERS; TOUGHNESS; BEHAVIOR;

D O I：

10.1016/j.corsci.2023.111358

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-Si coating prevents the oxidation or decarburization of hot-press forming (HPF) steel. However, the high reactivity of Al with moisture promotes H uptake, and the coating hinders the out-diffusion of absorbed H atoms inside the steel, leading to hydrogen embrittlement (HE). This study added Sb to adjust Fe and Al/Si diffusivity, and forming H-trapping voids within the coating. Simultanesouly, these voids provided routes for the emission of H atoms, thereby improving the resistance to crack propagation during bending. The optimal design of the Al-Si coating by adjusting the Sb content and void fraction would enable extensive applications of HPF steel.

引用

页数：17

共 13 条

[1] Delaying hydrogen permeation by Mg and Sr added Al-Si coating during hot-press-forming of boron steels
Kim, Changkyu
Yang, Wonseog
Castaneda, Homero
MATERIALS LETTERS, 2024, 371
[2] Effects of Ni-precoating on hydrogen intrusion/emission behavior in Al-Si-coated hot-press-forming steel sheets
Kim, Selim
Kim, Seongwoo
Oh, Jinkeun
Lee, Byeong-Joo
Lee, Sunghak
Kim, Sang-Heon
Sohn, Seok Su
SURFACE & COATINGS TECHNOLOGY, 2024, 477
[3] Effects of Al-Si coating structures on bendability and resistance to hydrogen embrittlement in 1.5-GPa-grade hot-press-forming steel
Yoo, Jisung
Kim, Selim
Kim, Seongwoo
Oh, Jinkeun
Kim, Sang-Heon
Lee, Sunghak
Sohn, Seok Su
Jo, Min Cheol
ACTA MATERIALIA, 2022, 225
[4] Corrosion behavior of Al-Si-Mg coated hot-press-forming steel
Kim, Changkyu
Cho, Seongkoo
Yang, Wonseog
Karayan, Ahmad Ivan
Castaneda, Homero
CORROSION SCIENCE, 2021, 183
[5] Enhancing resistance to hydrogen embrittlement in high-strength hot-press-forming steel sheets through Al-Si-Zn coating optimization
Hong, Seok-Hyun
Cho, Hyung-Jun
Kim, Selim
Song, Sang Yoon
Chung, Hyun
Lee, Suk-kyu
Lee, Sunghak
Sohn, Seok Su
Kim, Sung-Joon
ACTA MATERIALIA, 2025, 283
[6] Effects of Sn addition on the improved hydrogen intrusion and emission behaviors in 1.5-GPa-grade Al-Si-coated hot press forming steels
Kim, Selim
Zargaran, Alireza
Lee, Sunghak
Kim, Nack J.
Kim, Sang-Heon
Sohn, Seok Su
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 960
[7] Microstructural evolution of liquid metal embrittlement in 1.5-GPa-grade Zn-coated hot-press-forming steels
Hong, Seok-Hyun
Kim, Doyub
Lee, Sunghak
Kim, Sung-Joon
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2023, 874
[8] Hook formation and joint strength in friction stir spot welding of Al alloy and Al-Si-coated hot-press forming steel
Kang, Minjung
Yoon, Jinyoung
Kim, Cheolhee
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2020, 106 (5-6): : 1671 - 1681
[9] Microstructure and Mechanical Properties of Laser Welded Al-Si Coated Hot-Press-Forming Steel Joints
Chen, Xi
Lei, Zhenglong
Chen, Yanbin
Jiang, Meng
Tian, Ze
Bi, Jiang
Lin, Sanbao
MATERIALS, 2019, 12 (20)
[10] Effect of Cooling Rate on Microstructure, Phases, and Properties of Al-Si Coated Hot-Press-Forming Steel Sheets
Kim, Dong-Gyu
Pradhan, Sanjaya Kumar
Na, Yeseul
Nam, Changwoo
Oh, Min-Suk
MATERIALS TRANSACTIONS, 2025, 66 (01) : 38 - 43

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