Hydrogen-induced fast fracture in notched 1500 and 1700 MPa class automotive martensitic advanced high-strength steel

Venezuela, Jeffrey; Hill, Timothy A.; Zhou, Qingjun; Li, Huixing; Shi, Zhiming; Dong, Futao; Knibbe, Ruth; Zhang, Mingxing; Dargusch, Matthew; Atrens, Andrej

doi:10.1016/j.corsci.2021.109550

Cited by 29 publications

(3 citation statements)

References 74 publications

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“…[8][9][10] Hydrogen embrittlement considerably degrades mechanical properties, promotes fracture failure, and reduces service life. [11,12] Therefore, research on hydrogen embrittlement is of great importance for improving the comprehensive properties of the heat-affected zone under welding with high linear energy.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Diffusion and Hydrogen Embrittlement Failure Behavior of AH36 Marine Steel Subjected to High Heat Input Welding

Zhang

Cui

et al. 2022

steel research int.

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AH36 marine steel processed through high heat-input welding is subjected to microstructural characterization, hydrogen permeation test, internal friction test, and slow strain rate tensile test to reveal its hydrogen diffusion and hydrogen embrittlement failure behaviors. Compared with the base metal, the coarsegrained heat-affected zone (CGHAZ) exhibits a significantly coarsened microstructure and decreased hydrogen trap density, resulting in a high hydrogen diffusion coefficient and short hydrogen permeation time. The presence of hydrogen yields a hydrogen-induced Snoek internal friction peak and promotes the movement of the Snoek-Kê-Köster internal friction peak to the lowtemperature region. In addition, B and Kê peaks, which are not found in the base metal, appear in the CGHAZ. With increasing hydrogen content, the plastic loss and brittle fracture of the AH36 marine steel become increasingly significant, and the hydrogen embrittlement sensitivity of the heat-affected zone increases compared with that of the base metal. The discontinuous yield phenomenon gradually disappears under slow strain rate tension owing to the weak pinning effect of the Cottrell atmosphere on mobile dislocations.

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Section: Introductionmentioning

confidence: 99%

Hydrogen Diffusion and Hydrogen Embrittlement Failure Behavior of AH36 Marine Steel Subjected to High Heat Input Welding

Zhang

Cui

et al. 2022

steel research int.

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“…Very rarely, the measurements of hydrogen concentration are carried out in solid cold rolled products. The data of numerous studies [8,[19][20][21][22] show that the hydrogen concentration 0.5 -1.5 ppm in the cold metals is critical for the strength of modern structural steels, [8,20]. Mechanical testing is very time consuming.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

The Metallurgical hydrogen as an indicator and cause of damage to rolled steel: Hydrogen diagnostics of fracture

Polyanskiy

Loginov

Yakovlev

et al. 2022

Frattura Ed Integrità Strutturale

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Fatigue tests and measurements of the volumetric distribution of metallurgical hydrogen in specimens cut from rolled I-beam 60Sh3 made of steel 10KhSND were carried out. Fatigue tests show a 20% reduction in fatigue limits compared to similar sheet material. On the fractures of the samples, there are flock-like defects in the areas of interface of the flanges of the I-beam, or the so-called zones of difficult deformation. The concentration of metallurgical hydrogen is unevenly distributed and varies from 0.17 ppm to 1.8 ppm. Large concentrations of hydrogen are observed in the zones of difficult deformation, which indicates the hydrogen nature of the metal defects observed at the fracture. The result of mechanical tests and hydrogen diagnostics is a manufacturing defect of rolled products that cannot be corrected. Hydrogen diagnostics using metallurgical hydrogen (without hydrogen charging samples) takes tens of times less time than mechanical tests, and gives an adequate result.

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“…Sub-critical cracking is associated with a reduction in the strength, toughness, and ductility of MS steel [115,116]. Sub-critical crack extension by HE includes the following mechanisms: hydrogen-enhanced strain-induced vacancies [117], hydrogen-enhanced decohesion [118], hydrogen-enhanced plasticity-mediated decohesion [119], adsorption-induced dislocation emission [120], and hydrogen-enhanced localised plasticity [121]. Tong et al [122] proposed a method of determination of the critical conditions for a safe service and rapid evaluation of the hydrogen embrittlement sensitivity of martensite steel MS1500.…”

Section: Martensitic Steelsmentioning

confidence: 99%

Current Trends in Metallic Materials for Body Panels and Structural Members Used in the Automotive Industry

Trzepieciński,

Najm

2024

Materials

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The development of lightweight and durable materials for car body panels and load-bearing elements in the automotive industry results from the constant desire to reduce fuel consumption without reducing vehicle performance. The investigations mainly concern the use of these alloys in the automotive industry, which is characterised by mass production series. Increasing the share of lightweight metals in the entire structure is part of the effort to reduce fuel consumption and carbon dioxide emissions into the atmosphere. Taking into account environmental sustainability aspects, metal sheets are easier to recycle than composite materials. At the same time, the last decade has seen an increase in work related to the plastic forming of sheets made of non-ferrous metal alloys. This article provides an up-to-date systematic overview of the basic applications of metallic materials in the automotive industry. The article focuses on the four largest groups of metallic materials: steels, aluminium alloys, titanium alloys, and magnesium alloys. The work draws attention to the limitations in the development of individual material groups and potential development trends of materials used for car body panels and other structural components.

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Hydrogen-induced fast fracture in notched 1500 and 1700 MPa class automotive martensitic advanced high-strength steel

Cited by 29 publications

References 74 publications

Hydrogen Diffusion and Hydrogen Embrittlement Failure Behavior of AH36 Marine Steel Subjected to High Heat Input Welding

Hydrogen Diffusion and Hydrogen Embrittlement Failure Behavior of AH36 Marine Steel Subjected to High Heat Input Welding

The Metallurgical hydrogen as an indicator and cause of damage to rolled steel: Hydrogen diagnostics of fracture

Current Trends in Metallic Materials for Body Panels and Structural Members Used in the Automotive Industry

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