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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2025.6
- 수록면
- 280 - 299 (20page)
이용수
초록· 키워드
Hydrogen embrittlement (HE) is a critical concern in advanced high-strength steels (AHSS), particularly after resistance spot welding (RSW) and laser welding (LW), where localized microstructural changes and residual stresses exacerbate susceptibility to hydrogen-induced cracking. This review comprehensively examines the hydrogen embrittlement susceptibility of RSW and LW joints by analyzing key influencing factors such as hydrogen diffusion, trapping sites, and microstructural transformations at the weld and heat-affected zones (HAZ). The study discusses various hydrogen charging methods, including acid immersion and cathodic charging, to simulate real-world hydrogen exposure conditions. To evaluate hydrogen embrittlement susceptibility, a range of mechanical and electrochemical testing techniques are reviewed. For RSW joints, methods such as slow strain rate tensile testing (SSRT), incremental load testing (ILT), and constant load testing (CLT) are explored to assess delayed fracture risks. Additionally, for LW joints, self-restraint bead-on-plate tests are examined, highlighting the role of weld pool dynamics and solidification characteristics in hydrogen trapping. Furthermore, advanced hydrogen quantification techniques, including thermal desorption spectroscopy (TDS) and gas chromatography with a thermal conductivity detector, are discussed to accurately determine hydrogen concentration and distribution in welded regions. By correlating hydrogen uptake, microstructural evolution, and embrittlement susceptibility, this review provides a systematic understanding of hydrogen embrittlement mechanisms in RSW and LW joints. The insights presented aim to support the development of optimized welding strategies and mitigation approaches, enhancing the structural reliability of AHSS for automotive and industrial applications.
#Hydrogen embrittlement
#Laser welding
#Resistance spot welding
#Advanced high strength steel (AHSS)
#Fracture mechanism
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목차
- Abstract
- 1. Introduction
- 2. Hydrogen Charging Methods
- 3. Quantifying hydrogen entrapped in different traps of automotive steel weld joints
- 4. Hydrogen absorption and embrittlement of different AHSS
- 5. Resistance spot welding and influence of hydrogen embrittlement in HSS
- 6. Other common Hydrogen cracking susceptibility tests and diffusible hydrogen measurements from weld joints.
- References
참고문헌
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UCI(KEPA) : I410-151-25-02-093107593
