Tribocorrosion behavior of additive manufactured Ti-6Al-4V biomedical alloy

被引：61

作者：

Buciumeanu, M. ^{[1
]}

Bagheri, A. ^{[2
]}

Shamsaei, N. ^{[3
]}

Thompson, S. M. ^{[3
]}

Silva, F. S. ^{[4
]}

Henriques, B. ^{[4
,5
]}

机构：

[1] Dunarea de Jos Univ Galati, Fac Engn, Dept Mech Engn, Domneasca 47, Galati 800008, Romania

[2] Mississippi State Univ, CAVS, Mississippi State, MS 39762 USA

[3] Auburn Univ, Dept Mech Engn, Lab Fatigue & Addit Mfg Excellence FAME, Auburn, AL 36849 USA

[4] Univ Minho, Ctr Microelectromech Syst, MEMS UMinho, Campus Azurem, P-4800058 Guimaraes, Portugal

[5] Fed Univ Santa Catarina UFSC, Ceram & Composite Mat Res Grp CERMAT, Campus Trindade, Florianopolis, SC, Brazil

来源：

TRIBOLOGY INTERNATIONAL | 2018年 / 119卷

关键词：

Ti-6Al-4V alloy; Hot pressing; Laser Engineered Net Shaping (LENS); Tribocorrosion; YTTRIA-STABILIZED ZIRCONIA; MECHANICAL-PROPERTIES; ARTIFICIAL SALIVA; TITANIUM-ALLOYS; WEAR BEHAVIOR; CORROSION BEHAVIOR; TI6AL4V ALLOYS; MICROSTRUCTURE; IMPLANTS; COCRMO;

D O I：

10.1016/j.triboint.2017.11.032

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The tribocorrosion behavior of Ti-6Al-4V alloy as produced using different manufacturing/processing methods is experimentally investigated. Various Ti-6Al-4V specimens sourced from either casting, hot pressing (HP) or Laser Engineered Net Shaping (LENS) processes were analyzed via reciprocating sliding alumina contact tests under open circuit potential (OCP). Results indicate that the tribocorrosion behavior of Ti-6Al-4V parts depends on its manufacturing method. The additive manufactured, LENS Ti-6Al-4V samples showed better wear and corrosion resistance as compared to the Ti-6Al-4V samples produced by either casting or HP. This unique characteristic is attributed to the very high, localized cooling rates experienced during LENS resulting in the Ti-6Al-4V material having higher hardness and slight chemistry variation.

引用

页码：381 / 388

页数：8

共 54 条

[1] Phase transformations during cooling in α+β titanium alloys [J].