High-Power Diode Laser Surface Transformation Hardening of Ferrous Alloys

Czupryński, Artur; Janicki, D.; Górka, Jacek; Grabowski, A.; Wyględacz, Bernard; Matus, Krzysztof; Karski, Wojciech

doi:10.3390/ma15051915

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…In some cases (e.g. ferrous alloys), the high density of energy allows to influence the microstructure of processed materials in a profitable way [6]. When it comes to aluminum and its alloys one of the most serious obstacles in laser beam welding is the problem of welds porosity.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Kosturek

Grzelak

Torzewski

et al. 2022

Advances in Materials Science

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The fundamental aim of the research is to investigate the microstructure and mechanical properties of the AA2519-T62 laser beam welded joints obtained with various values of welding velocity. For the constant value of laser power (3.2 kW) three joints have been produced with various values of welding velocity: 0.8, 1.1, and 1.4 m/min. The joints have been subjected to microstructure analysis (including both light and scanning electron microscope), microhardness measurements, tensile tests, and fractography of tensile samples. The established values of joint efficiency contain within the range of 55-66% with the highest value (66%) reported for the joint obtained with 1.1 m/min welding velocity. The produced welds have noticeable participation of pores, which tends to increase together with the value of welding velocity. In all cases, the failure has occurred in the fusion zone by ductile fracture.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Kosturek

Grzelak

Torzewski

et al. 2022

Advances in Materials Science

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“…Modifying the surface layer by heating with a laser beam is a method of improving the surface properties of a material, and it is a method that has been advancing since the end of the last century [ 1 ]. Laser processing allows significant changes in the microstructure and properties of local surface areas, including cast iron [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. It is noteworthy that in the case of laser processing, the conditions for microstructure formation are completely different compared with conventional hardening methods.…”

Section: Introductionmentioning

confidence: 99%

The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

Paczkowska

2022

Materials

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The aim of this research was to compare the effects of laser treatment, with the same heating conditions, using four selected alloying substances (silicon, cobalt, silicon nitride and titanium), in the surface layer of nodular cast iron. The treatment was performed with a molecular laser. As the microstructure observation revealed, the greatest amount of implemented elements was diluted during the treatment in a solid solution. In all cases (except during the alloying process with cobalt), in the alloying zone, a fine and homogeneous microstructure was found. In the alloying zone, cobalt counteracted the formation of the martensitic microstructure so effectively that austenite turned into exclusively fine perlite (or bainite at most). The size of the obtained alloyed zone was different, despite the same laser heat treatment parameters. A 30% smaller depth of zone after laser alloying with silicon nitride, as compared with alloying with cobalt or silicon, was observed. The highest strengthening of the alloyed zone could be expected when silicon (hardness was approx. 980HV0.1 and the modulus of elasticity was 208 GPa) and titanium (hardness was approx. 880HV0.1 and the modulus of elasticity was 194 GPa) were used. The lowest hardness (700HV0.1) was observed for the zone alloyed with cobalt due to pearlite (or bainite) existence.

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Recent Advances in Laser Surface Hardening: Techniques, Modeling Approaches, and Industrial Applications

Łach

2024

Crystals

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The article provides a comprehensive review of the latest developments in the field of laser surface hardening (LSH) and its modeling techniques. LSH is a crucial process for enhancing the surface properties of metals, particularly their hardness and wear resistance, without compromising their bulk properties. This review highlights the fundamental principles of LSH, the types of lasers used, and the key parameters influencing the hardening process. It delves into various modeling approaches, including finite element method (FEM) simulations, analytical models, and empirical models (using statistical methods), emphasizing the integration of advanced computational techniques such as machine learning and artificial intelligence to improve the accuracy and efficiency of LSH simulations. The review also explores practical applications across different industries, showcasing how LSH models have been used to solve real-world challenges in the automotive, aerospace, and tool manufacturing sectors. Finally, it addresses current limitations and outlines future research directions, suggesting potential areas for further advancements in the modeling and application of LSH processes.

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High-Power Diode Laser Surface Transformation Hardening of Ferrous Alloys

Cited by 3 publications

References 29 publications

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

Recent Advances in Laser Surface Hardening: Techniques, Modeling Approaches, and Industrial Applications

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