Jan 30, 2014 · The power of TiN was injected into the lasermelted steel. The microstructure, hardness and wear resistance of the metal matrix composite new surface, followed by peakage hardening, have been studied. Laser parameters were optimized to obtain a defectfree material.
Advanced Engineering Materials:Vol 21, No 3Mar 25, 2019 · The tribological properties of surface textures fabricated with different laser pulse durations ranging from nano to femtoseconds are investigated. The influence of the pulse duration on the textures profile and its impact on the tribological response are assessed.
Combined Surface Hardening and Laser Patterning Approach for Functionalising Stainless Steel Surfaces By Antonio Garcia Giron, Jean-Michel Romano, Yana Liang, Behnam Dashtbozorg, Hanshan Dong, Pavel Penchev and Stefan Dimov
Heat Treatment of Low Carbon Steel - ethesisnormalizing, hardening, austempering, mar tempering, tempering and surface hardening. Case hardening is the process of hardening the surface of metal, often low carbon steel by infusing elements into the metal surface forming a hard, wear resistance skin but preserving a tough and ductile applied to gears, ball bearings, railway wheels.
Influence Environment and Parameters Ablative Laser This paper presents results of laboratory investigation microstructure bearing steel 100CrMnSi6-4 after laser hardening in the air and cryogenic environment. Usied high-power laser CO2 (4 kW) were selected the best parameters for hardening process (power density, scanning speed, the overlap surface hardened zones). As a result, laser hardening of the surface layer steel 100CrMnSi6-4 with
The investigation was carried out in the laser-technological complex with the power up to 8 kW, ITAM SB RAS. An inert-gas jet was supplied coaxially with the beam. A protective nozzle from which gaseous Ar was injected was used to protect the hardening joint. The parameters of the laser hardening process with the surface alloying was optimized on the samples of low-carbon steel 20
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This study concerns laser surface hardening (LSH) of austempered SAE 52100 steel to enhance hardness and wear resistance. Following LSH with selected laser parameters, surface
M2 cusing Metal laser melting system - GEProduction speed LaserCUSING® 2 - 20 cm3/h (depending on material / laser power) Laser system Fibre laser 200 W (cw), optional 400 W (cw) Scanning speed 7 m/s, 4,5 m/s for variable focus move Focus diameter 50 m, optional variable focus move (50 m 500 m) Reference clamping system (optional) EROWA, System 3R / others on request
Surface Hardening of Stainless Steelssurface-hardening). 3.Surface coating or surface-modification methods, which involve the intentional build-up of a new layer on the steel sub-strate. Various process methods for the surface hardening of steels are shown in Table 1. These long-established techniques are continually improved and remain among the most widely applied ones. This
Have studied microstructure of the gas nitriding layer and the laser quenching/ nitriding layer using the X-ray diffractometer and the transmission electron microscope to the brittl of nitriding layer. The results show that the content of Fe3N in composite nitrided layer increased from 14.74% to the 69.45%, while the crisp hard -Fe2N content dropped from 79.95%to 25.03%, Especially the Cr2N
Wear Behavior of Laser-Hardened GCr15 Steel under Microstructure, microhardness and tribological properties of laser hardened GCr15 steel were investigated in this paper. The wear resistance under lubricated sliding conditions was compared between specimens treated with laser and those of conventionally hardened. The tribological properties of laser surface-quenched GCr15 steel specimens were slightly better due to the effects of the Surface hardening of steel using a high power diode laser Request PDF Surface hardening of steel using a high power diode laser Heat treating the surface of medium carbon steels to produce a hardened layer whilst retaining a tough core is widespread