A Laser Processing Technique for Improving the Wear Resistance of Metals

JOM ◽  
1981 ◽  
Vol 33 (8) ◽  
pp. 19-23 ◽  
Author(s):  
J. D. Ayers ◽  
R. J. Schaefer ◽  
W. P. Robey
Keyword(s):  
Wear Resistance ◽  
Laser Processing ◽  
Processing Technique

Recent Progress of Interfering Ultra-fast Laser Processing Technique

2015 ◽  
Vol 135 (9) ◽  
pp. 1080-1084
Author(s):  
Yoshiki Nakata ◽  
Yoshiki Matsuba ◽  
Noriaki Miyanaga
Keyword(s):  
Laser Processing ◽  
Recent Progress ◽  
Processing Technique

Laser Processing Technique of Stainless Steel Surface Nanotexture

2011 ◽  
Vol 4 (3) ◽  
pp. 891-894 ◽  
Author(s):  
Haifeng Yang ◽  
Yanqing Wang ◽  
Liang Fang ◽  
Shirong Ge
Keyword(s):  
Stainless Steel ◽  
Laser Processing ◽  
Steel Surface ◽  
Processing Technique ◽  
Stainless Steel Surface

Stimulated in vitro bone-like apatite formation by a novel laser processing technique

2008 ◽  
Vol 137 (1) ◽  
pp. 144-153 ◽  
Author(s):  
Emilia Pecheva ◽  
Todor Petrov ◽  
Cristian Lungu ◽  
Paul Montgomery ◽  
Lilyana Pramatarova
Keyword(s):  
Laser Processing ◽  
Processing Technique ◽  
Apatite Formation

scholarly journals LOCAL ALLOYING OF TITANIUM COPPER

2020 ◽  
pp. 12-16
Author(s):  
V. Shmorgun ◽  
O. Slautin ◽  
A. Serov ◽  
R. Novikov
Keyword(s):  
Wear Resistance ◽  
Titanium Alloy ◽  
Surface Layer ◽  
Phase Composition ◽  
Intermetallic Compounds ◽  
Laser Processing ◽  
Titanium Surface ◽  
Explosion Welding ◽  
Copper Plating ◽  
Fixed Abrasive

The influence of the parameters of laser processing of copper plating deposited by explosion welding and subsequent rolling on the titanium surface on the structure and phase composition of the coatings is studied. It is shown that alloying titanium with copper leads to the formation of intermetallic compounds (titanium cuprides) in the remelting zone, which contributes to a significant increase in the wear resistance of the surface layer. When tested for wear on a fixed abrasive, the wear resistance of the coating is 2 times higher than that of VT1-0 titanium alloy.

scholarly journals Surface Laser Processing of Additive Manufactured 1.2709 Steel Parts: Preliminary Study

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
O. Černašėjus ◽  
J. Škamat ◽  
V. Markovič ◽  
N. Višniakov ◽  
S. Indrišiūnas
Keyword(s):  
Wear Resistance ◽  
Laser Processing ◽  
Selective Laser Sintering ◽  
Scanning Speed ◽  
Surface Conditions ◽  
Metal Parts ◽  
Processing Times ◽  
Surface Laser ◽  
Preliminary Study

Recently, metal selective laser sintering (SLS) techniques have attracted lively interest as a promising technology, which offers a number of unique applications in manufacturing of metal parts with complex internal structure and geometry. However, unsatisfactory surface properties of as-manufactured SLS parts cause high cost of finish processing and restrict wider application of SLS products. The paper presents results of the study, which was taken to evaluate capability of laser processing to improve surface quality of SLS parts manufactured from powder maraging steel 1.2709 (X3NiCoMoTi 18-9-5). The properties of processed surfaces were assessed, and the main dependencies of the roughness, hardness, wear resistance, and phase composition on the main parameters of laser processing—scanning speed, laser power, and number of processing times—were determined. The roughness of surfaces was diminished up to ∼41%, the hardness was increased up to ∼88%, and the wear resistance was improved up to almost 4 times, as compared with surface of as-manufactured SLS part. The preliminary study has demonstrated that laser processing has considerable potential for improvement of surface conditions of steel additive manufactured parts.

scholarly journals Production and Properties of FeB-Fe2B-Fe3(B,C) Surface Layers Formed on Tool Steel Using Combination of Diffusion and Laser Processing

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1130 ◽  
Author(s):  
Aneta Bartkowska
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Laser Beam ◽  
Tool Steel ◽  
Laser Processing ◽  
Steel Substrate ◽  
Beam Power ◽  
Slight Reduction ◽  
Laser Beam Power ◽  
Study Results

The paper presents the study results of laser remelting diffusion boronized layers produced on CT90 tool steel. A diffusion boronized layer was produced at 950 °C in a powder mixture containing boron carbide as a source of boron. A needle-like microstructure of iron boride was obtained. After diffusion boronizing, the specimens were subjected to laser processing, which was carried out using a diode laser with a nominal power of 3 kW. Three laser beam power values were applied (600, 900, and 1200 W). The aim of the study was to investigate the microstructure, microhardness, chemical, and phase composition as well as the wear and corrosion resistance of newly formed FeB-Fe2B-Fe3(B,C) layers. As a result of the laser beam interaction, the needle-like borides occurring in the subsurface zone were remelted, and three characteristic areas were obtained: the remelted zone, the heat-affected zone, and the substrate. The properties of newly formed layers have improved in comparison to diffusion boronized layers (except for corrosion resistance). It should be noted that using the highest laser beam power contributed to a slight reduction in wear resistance. Both the reduced corrosion and wear resistance were caused by greater remelting of the steel substrate and thus by the increased iron content in the formed layer.

Influence of Work Media on Surface Property of Compacted Graphite Cast Iron Processed by Laser Local Processing

2015 ◽  
Vol 817 ◽  
pp. 385-391
Author(s):  
Yan Liu ◽  
Hong Zhou ◽  
Jing Yan Cheng ◽  
Chun Yan Yang ◽  
Peng Zhang
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Surface Property ◽  
Laser Processing ◽  
Smooth Surface ◽  
Local Processing ◽  
Thermal Crack ◽  
Micro Hardness ◽  
Compacted Graphite ◽  
Graphite Cast Iron

In order to enhance surface property of brake materials, compacted graphite cast iron (CGI) with non-smooth surface was processed by laser local processing. This study focuses on the influence of the work media on wear resistance and thermal fatigue resistance of specimens. The results showed that when the work media were air and water respectively, laser local processing could enhance surface property of CGI. Changing work media could not change phase compositions of the laser processing area, but refined their microstructures, which enhanced their micro-hardness. By this way, the specimens’ wear resistance and resistance to thermal crack initiation were further improved, while their resistance to thermal crack propagation was influenced by cracks on bionic units.

scholarly journals The use of laser radiation to increase the efficiency of nitriding processes

2021 ◽  
Author(s):  
Alnusirat Walid ◽  
Leonid Golovko ◽  
Viktor Romanenko ◽  
Mikhailo Bloshchytsyn
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Laser Processing ◽  
Metal Alloys ◽  
Surface Layers ◽  
High Quality ◽  
Combined Process ◽  
Radical Reduction ◽  
Increase Wear Resistance ◽  
Time And Energy

In this study, the technology of laser processing is tested. This combined process of laser chemical-thermal treatment allows by modifying the structures of the surface layers of metal alloys to significantly increase the thickness range of high-quality nitrided layers with a radical reduction in time and energy consumption of the process, significantly expand their applications to increase wear resistance, corrosion resistance and other performance characteristics.

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