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Sliding wear behavior of forged, uncoated and laser nitrided LMD TC18 titanium alloy

  • Lin Liu
  • , Cheng Chen Liu
  • , Hao Han
  • , Yun Jie Shangguan
  • , Qi Wang
  • , Hai Bo Tang
  • , Hua Ming Wang
  • China University of Mining & Technology, Beijing
  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recently, laser melting deposition (LMD) undergoes rapid development since its fabricating advantages make it particularly suitable for the fabrication of titanium aerospace components. The dry sliding wear behavior of forged, uncoated and laser nitrided LMD TC18 titanium alloy sliding against the forged TA15 alloy were investigated. Then, reasons of their wear behavior were further studied. The specimens were tested on the M-200 tester, worn surface morphology and wear debris were carefully analyzed by means of SEM and EDS. The results show that in the case of forged and LMD TC18 titanium alloy sliding against TA15 alloy, wear mechanism are abrasive wear and adhesive wear. Because of the lubricious nature of TiO2 oxides produced during sliding which reduces the wear and consequently wear loss, the wear resistance of forged TC18 titanium alloy is superior to that of LMD TC18 titanium alloy. After using laser nitriding treatment on LMD TC18 alloy, the formation of a protective layer composed of dendritic TiN attributes to significant wear resistance improvement.

Original languageEnglish
Title of host publicationNano-Scale Materials, Materials Processing and Genomic Engineering
PublisherTrans Tech Publications Ltd
Pages344-349
Number of pages6
ISBN (Print)9783038350897
DOIs
StatePublished - 2014
Externally publishedYes
Event12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013 - Qingdao, China
Duration: 22 Sep 201328 Sep 2013

Publication series

NameMaterials Science Forum
Volume789
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013
Country/TerritoryChina
CityQingdao
Period22/09/1328/09/13

Keywords

  • Dry sliding wear
  • Laser melting deposition
  • Laser surface nitriding
  • TC18 titanium alloy

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