Weldability of Al-Si Coated High Strength Martensitic Steel

Schmidová, Eva; Hanus, Petr

doi:10.3311/pptr.7113

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…The samples chosen for X-ray diffraction are indicated in Figure 5. The detrimental effect of H on the mechanical properties and diffusion of AHSS was specifically considered by some researchers 15,[21][22][23][24][25] and fewer studies related to 22MnB5 steel press hardening steel are developed 14 and even less on 22MnB5 steel with Al-Si coating patch weld. However, the Vickers hardness results on the patchweld indicate the same possible behavior on the welding parameters used in this experiment.…”

Section: Resultsmentioning

confidence: 99%

Study of Patchwelded Blanks Resistance Spot Welding (RSW) Before Hot Stamping with and without Heat Treatment Parameters

Lara,

Abbade,

Mucsi

et al. 2023

Mat. Res.

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In recent years, increasing automotive safety and energy efficiency has become a major concern in the automotive industry. Advanced high-strength steel (AHSS) was chosen for its weight reduction and high mechanical strength for the body in white (BIW). Specifically, it has been used in 22MnB5 steel press hardening type steel (PHS) with patchweld technology, which enables the production of reinforced and structural parts in a single stroke during the hot forming process. This study aimed to evaluate the resistance spot welding parameters for patchweld before hot stamping, considering the minimum and maximum residual stress, while ensuring a welding nugget diameter within the approved range. Microhardness and X-ray diffraction were used to analyze the welding zones for phase identification and residual stress measurements. After five weeks of elapsed time, the spot weld showed cracks that were not seen immediately after welding and were probably due to a high residual stress state.

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Section: Resultsmentioning

confidence: 99%

Study of Patchwelded Blanks Resistance Spot Welding (RSW) Before Hot Stamping with and without Heat Treatment Parameters

Lara,

Abbade,

Mucsi

et al. 2023

Mat. Res.

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“…Windmann [5,6] describes the dependence of the morphology of the AlSi coating on the heat treatment parameters, and, in this context, the research by Füssela et al [7] shows that different layer thicknesses significantly change the weldability of the base material. [8][9][10] Schmidová et al [11] examined heat treated AlSi coatings in the temperature range of 880-850°C with a holding time of 5 -10 min. This has confirmed the creation of a diffusion layer formed during the heat treatment.…”

Section: Introductionmentioning

confidence: 99%

THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT

Kolaříková

Chotěborský²,

Hromasová

et al. 2019

Acta Polytech

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The coating on the 22MnB5 steel is intended to protect it against oxidation during the forming process. This steel is hot-pressed. A preheating before the pressing and subsequent hardening in the tool affects the properties of the AlSi coating. This study summarizes the results of investigating the effect of heat treatment parameters on the formation of intermetallics in the AlSi coating. The chemical analysis of the coating was performed by the EDX and EBSD method and the mechanical properties were determined by the Hysitron TI 950 TriboIndenter™ system. The result of this study is that, due to a diffusion during the heat treatment, the brittle coating was transformed into a tougher phase.

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Comparison of microstructure and phase transformation of laser-welded joints in Al-10wt%Si-coated boron steel before and after hot stamping

Yoon

Oh²,

Shin

et al. 2017

Materials Characterization

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Weldability of Al-Si Coated High Strength Martensitic Steel

Abstract: Abstract

Cited by 4 publications

References 9 publications

Study of Patchwelded Blanks Resistance Spot Welding (RSW) Before Hot Stamping with and without Heat Treatment Parameters

Study of Patchwelded Blanks Resistance Spot Welding (RSW) Before Hot Stamping with and without Heat Treatment Parameters

THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT

Comparison of microstructure and phase transformation of laser-welded joints in Al-10wt%Si-coated boron steel before and after hot stamping

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