Microstructure and selected properties of boronized layers produced on C45 and CT90 steels after modification by diode laser
Journal Title: Archives of Mechanical Technology and Materials - Year 2016, Vol 36, Issue
Abstract
The paper presents the study results of macro- and microstructure, microhardness and corrosion resistance of C45 medium carbon steel and CT90 high carbon steel after diffusion boriding and laser modification by diode laser. It was found that the increase of carbon content reduced the thickness of boronized layer and caused change in their morphology. Diffusion boronized layers were composed of FeB and Fe2B iron borides. As a result of laser surface modification of these layers, the microstructure composed of three areas: remelted zone, heat affected zone (HAZ) and the substrate was obtained. Microhardness of laser remelting boronized layer in comparison with diffusion boronized layer was lower. The presence of HAZ was advantageous, because mild microhardness gradient between the layer and the substrate was assured. The specimens with laser boronized layers were characterized by better corrosion resistance than specimens without modified layer.
Authors and Affiliations
Aneta Bartkowska, Dariusz Bartkowski, Damian Przestacki, Małgorzata Talarczyk
Keywords
Related Articles
- EP ID EP198830
- DOI 10.1515/amtm-2016-0010
- Views 72
- Downloads 0
APPLICATION OF VISUAL SYSTEM FOR HAND CONTROL OF 3D MANIPULATOR
The article concerns controlling of a 3-axles manipulator by hand movement, recognized by visual system. In the investigations the Kinect sensor was used, which enabled the acquiring of 2D hand images with depth paramete...
Sensorless compensation system for thermal deformations of ball screws in machine tools drives
The article presents constructional, technological and operational issues associated with the compensation of thermal deformations of ball screw drives. Further, it demonstrates the analysis of a new sensorless compensat...
Open loop control of piezoelectric tube transducer
This paper is focused on the open loop control of a piezoelectric tube actuator, hindered by a strong hysteresis. The actuator was distinguished with 22 % hysteresis, which hinders the positioning of piezoelectric actuat...
THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON SURFACE TEXTURE OF DLD CEMENTED TUNGSTEN CARBIDE AFTER GRINDING
This paper presents the analysis of surface texture after grinding of claddings of tungsten carbide (WC). The workpiece material was cemented tungsten carbide produced by DLD (direct laser deposition) technology. The 3D...
The numerical investigation of thin-walled beams with modified C-sections
Demand for thin-walled structures has been increasing for many years. Cold-formed, thin-walled channel beams are the subject of presented research. The local elastic buckling and limit load of these beams subjected to pu...