Paper Title:
Wear Resistance Improvement of Titanium Bearings by Laser Gas Nitriding
  Abstract

The influence of gas nitriding of commercial pure titanium and Ti-6Al-4V (Ti64) alloy by using a Q-sw laser on the wear loss during rolling contact fatigue is investigated. Despite very good biocompatibility, high strength to weight ratio and corrosion resistance, the tribological properties of titanium alloys are inferior to those of other metal alloys, such as steel. Fretting and wear related aspects become important issues when titanium alloys are used in rolling contact applications. Titanium bearings are employed in applications requiring high strength, light weight, and minimum maintenance (for example, aerospace and defense industries). In this work, a Q-sw laser was used to coat pure commercial titanium and Ti-6Al-4V bearings with TiN in a closed chamber in nitrogen atmosphere. The samples were tested under water by using a thrust-type rolling contact fatigue machine. The microstructure, morphology and crystallographic texture of the layers were observed by laser confocal microscope, scanning electron microscope and electron backscatter diffraction (EBSD). By optimizing the laser processing parameters, such as laser scanning speed, power and beam diameter, thin TiN coats of 1 to 3 m were produced. The wear loss of the coated samples was at least ten times lower than that of the uncoated bearings.

  Info
Periodical
Advanced Materials Research (Volumes 217-218)
Edited by
Zhou Mark
Pages
988-993
DOI
10.4028/www.scientific.net/AMR.217-218.988
Citation
J. Rozwadowska, K. Kida, E. C. Santos, T. Honda, H. Koike, Y. Kashima, K. Kanemasu, "Wear Resistance Improvement of Titanium Bearings by Laser Gas Nitriding", Advanced Materials Research, Vols. 217-218, pp. 988-993, 2011
Online since
March 2011
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: Edson Costa Santos, Katsuyuki Kida, Justyna Rozwadowska, Takashi Honda, Hitonobu Koike, Yuji Kashima, Kenji Kanemasu, Ryo Matsumoto
Chapter 6: Friction and Wear
Abstract:The influence of gas nitriding on commercial pure titanium and Ti-6Al-4V (Ti64) alloy bearings by using a Q-sw laser on the wear loss during...
1629
Authors: Justyna Rozwadowska, Katsuyuki Kida, Edson Costa Santos, Takashi Honda, Hitonobu Koike, Yuji Kashima, Ryo Matsumoto
Chapter 1: Advanced Engineering Materials
Abstract:The influence of surface oxidizing using a Q-sw laser on the wear loss of titanium-4Al-6V (Ti64) alloy during rolling contact fatigue is...
393
Authors: Edson Costa Santos, Katsuyuki Kida, Justyna Rozwadowska, Takashi Honda, H. Koike, Y. Kashima, K. Kanemasu, R. Matsumoto
Chapter 2: Applied Mechanics and Mechanical Engineering
Abstract:Superscript textThe influence of gas nitriding on commercial pure titanium and Ti-6Al-4V (Ti64) alloy bearings by using a Q-sw...
1227
Authors: Koshiro Mizobe, Edson Costa Santos, Takashi Honda, Hitonobu Koike, Katsuyuki Kida, Yuji Kashima
Chapter 3: Materials and Information Technology
Abstract:In order to establish an optimal combination of materials used for polymer thrust bearings, two types of components (polyetheretherketone...
557
Authors: Koshiro Mizobe, Takashi Honda, Hitonobu Koike, Edson Costa Santos, Katsuyuki Kida, Yuji Kashima
Chapter 1: Advanced Materials and Technology on Metallurgy
Abstract:The production of bearings is focusing on polymers, such as polyether ether ketone (PEEK), a tough semi-crystalline thermoplastic polymer...
66