An investigation of sliding wear of Ti6Al4V

[摘要] ENGLISH ABSTRACT:Sliding wear is a complicated form of wear involving different factors. The factors affecting the process arethe mechanical properties of the materials, sliding distance, sliding speed, and normal force applied to thecontact.An experimental study was conducted to assess the performance of Ti6Al4V in self-mated and variouscounterface material contact couples subjected to linear reciprocating dry sliding motion. The normal forcewas varied for all the experiments to understand the effect it had on specific couples. Sliding wearexperiments were also conducted on cemented carbides coupled with Ti6Al4V. In certain applicationscarbide coatings are used and could possibly come into contact with Ti6Al4V. Cemented carbides used in thestudy were manufactured through spark plasma sintering and liquid phase sintering. An in depth study wasconducted to assess the spark plasma sintered materials and compare these to those manufactured throughliquid phase sintering.The experimental study revealed that an increase in normal force, in sliding experiments, led to an increasein friction and wear volume loss of the Ti6Al4V pin. In addition the experiments found that Ti6Al4V wasprone to adhesion and surface oxidation.

[发布机构] Stellenbosch University