Fracture Toughness Behavior of 38MnSiVS5 Microalloyed Steel After Isothermal Transformation and Thermomechanical Processing

Singh, Perminderjit; Batra, Uma; Sangal, S.

doi:10.1016/j.matpr.2017.07.199

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The chemical composition of the alloy and its mechanical properties are shown in Table 1. The alloy is used for automotive parts such as gear shafts, tappets, rotary bearings, axle pivots, hubs and piston heads (Singh et al, 2017).…”

Section: Alloy Characteristicsmentioning

confidence: 99%

Improving the Quality of the Friction Welding Process of Steel Components

Pacana

Czerwińska

2021

System Safety: Human - Technical Facility - Environment

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The aim of the study was to implement an integrally configured method of quality control of frictional welding of piston forgings intended for Diesel Man trucks. The use of the method (consisting of the 5W2H method, the Ishikawa diagram and the ABCD - Suzuki method) would contribute to the detection of the causes of non-compliance and consequently to the elimination of non-compliant products. Steel pistons have become the subject of research due to significant problems with maintaining their expected level of quality after the introduced structural and technological changes. The proposed method has helped to identify the root cause of non-compliance. It was: incorrect design of the combustion chamber in terms of diameter and depth. The study shows that it is advisable to use an integrated approach to finding the causes of quality problems on the example of the friction welding process. This was a new solution for the company, as no in-depth analyses of quality problems using a sequence of quality management techniques have been carried out so far.

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Section: Alloy Characteristicsmentioning

confidence: 99%

Improving the Quality of the Friction Welding Process of Steel Components

Pacana

Czerwińska

2021

System Safety: Human - Technical Facility - Environment

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“…Long-term fatigue life improvements can be achieved by modifying the materials composition and improving manufacturing processes. High strength materials can sustain heavy load and thus offer longer fatigue life for automotive application, such as 38MnSiVS microalloyed steel that has been commonly used in the automotive industry [4][5][6][7]. Meanwhile, 44MnSiVS6 microalloyed steel offers higher strength properties than 38MnSiVS due to its higher carbon content [8].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of laser surface treated 44MnSiVS6 microalloyed steel

Dewi

Fischer

Volpp

et al. 2020

Optics & Laser Technology

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“…One of the possible applications of laser hardening is seen in crankshaft hardening, e.g., treatment of the fillet regions, where currently traditional surface treatments (e.g., induction heating, deep rolling) are used in order to prevent fatigue cracking. Typically, microalloyed steels are used for crankshafts, such as 38MnSiVS5 [9][10][11][12] and 44MnSiVS6 [4], respectively.…”

Section: Introductionmentioning

confidence: 99%

Influence of complex geometries on the properties of laser-hardened surfaces

Volpp

Dewi

Fischer

et al. 2020

Int J Adv Manuf Technol

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Laser surface hardening provides for many advantages in terms of flexible production due to very localized and controlled energy input into the material. Laser processing offers the possibility to treat surfaces in order to locally strengthen the areas that are prone to fatigue cracking. It is well known that laser energy absorption depends on many parameters, e.g., the surface structure and the surface orientation. The incident angle of the laser beam plays a key role in this regard. When complex geometries like crankshaft fillets are treated, the surface cannot be considered a series of flat surfaces. Obviously, this leads to locally varying degrees of energy absorption. In the present work, curved surface structures were chosen in order to analyze the impact of the geometrical characteristics on surface and subsurface material properties after laser treatment. Microstructure evolution generally was found to be similar for flat and curved geometries. However, even if higher absorption in the groove due to the illumination at larger incident angles was expected, the outer parts of the curved geometry were not fully hardened. Thus, the increased effective length of the complex geometry-treated and the larger heat-affected volume are expected to have a more dominant influence on the final appearance of the subsurface microstructure. Eventually, for austenitization of the complete illuminated surface volume, the energy density needs to be increased.

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Fracture Toughness Behavior of 38MnSiVS5 Microalloyed Steel After Isothermal Transformation and Thermomechanical Processing

Cited by 5 publications

References 10 publications

Improving the Quality of the Friction Welding Process of Steel Components

Improving the Quality of the Friction Welding Process of Steel Components

Microstructure and mechanical properties of laser surface treated 44MnSiVS6 microalloyed steel

Influence of complex geometries on the properties of laser-hardened surfaces

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