Paper Title:
Structure and Properties of Gradient Layers Using High Power Diode Laser
  Abstract

Investigations include alloying the X38CrMoV5-3 hot-work tool steel surface layer with the tungsten carbide, using the high power diode laser (HPDL). The tungsten carbide ceramic particles of the medium grain size according to FSSS = 50 Bm were introduced using the rotor conveyer to improve the properties of the surface layer. The powder feed rate was set at the steady level of 8.64g/min. Remelting and alloying were carried out several times in the laser power range of 1.2 – 2.3 kW in the remelting/alloying, alloying/remelting sequences. The structural mechanism was determined of gradient layer development, effect was studied of alloying parameters, gas protection method, and powder feed rate on its mechanical properties, and especially on its hardness, abrasive wear resistance, and roughness. Structure changes were revealed consisting, in particular, in its refining, and also hardness and microhardness changes in comparison to the non-remelted steel. Examination results obtained with the EDX microanalysis, surface and linear analyses of the chemical composition, as well as the X-ray qualitative phase analysis are presented.

  Info
Periodical
Materials Science Forum (Volumes 530-531)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
269-274
DOI
10.4028/www.scientific.net/MSF.530-531.269
Citation
L. A. Dobrzański, M. Piec, Z. Trojanová, J. Lelątko, A. Klimpel, "Structure and Properties of Gradient Layers Using High Power Diode Laser", Materials Science Forum, Vols. 530-531, pp. 269-274, 2006
Online since
November 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Leszek Adam Dobrzański, Mirołsaw Bonek, Marek Piec, Ewa Jonda
Abstract:The objective of the present work was to study the modification of the microstructure of hot-work tool steels X40CrMoV5-1 and X38CrMoV5-3...
657
Authors: Marek Piec, Leszek Adam Dobrzański, Krzysztof Labisz, Ewa Jonda, Andrzej Klimpel
Abstract:Investigations include alloying the X38CrMoV5-3 hot-work tool steel surface layer with the tungsten carbide, using the high power diode...
193
Authors: Jing Xu, Wen Yan Wang, Jing Pei Xie, Ji Wen Li, Ai Qin Wang
Abstract:The wear resistance, corrosion resistance, high temperature resistance layers were prepared on the surface of ductile iron via laser alloying...
413
Authors: Wen Yan Wang, Xiao Ming Dong, Jing Pei Xie, Jing Xu, Luo Li Li
Abstract:Using sub-micron WC/Co metal ceramic composite as coating materials for laser alloying experiments to prepare high hardness and wear...
643
Authors: Zbigniew Brytan, Mirosław Bonek, Leszek Adam Dobrzański, Wojciech Pakieła
Laser Processing Technology
Abstract:Laser surface remelting and alloying of sintered stainless steel type 410L with FeNi and Ni have been studied for improvement of corrosion...
1425