Slurry Erosion-Corrosion Characteristics of As-Built Ti-6Al-4V Manufactured by Selective Laser Melting

被引：11

作者：

Aldahash, Saleh Ahmed ^{[1
]}

Abdelaal, Osama ^{[1
,2
]}

Abdelrhman, Yasser ^{[2
]}

机构：

[1] Majmaah Univ, Coll Engn, Dept Mech & Ind Engn, Al Majmaah 11952, Saudi Arabia

[2] Assiut Univ, Fac Engn, Dept Mech Engn, Assiut 71516, Egypt

来源：

MATERIALS | 2020年 / 13卷 / 18期

关键词：

selective laser melting (SLM); Ti-6Al-4V; slurry erosion; slurry erosion-corrosion; wear resistance; erosion mechanisms; HEAT-TREATMENT; MECHANICAL-PROPERTIES; FATIGUE BEHAVIOR; WEAR PROPERTIES; TITANIUM; MICROSTRUCTURE; ALLOYS; RESISTANCE; TI-6A1-4V; COATINGS;

D O I：

10.3390/ma13183967

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Erosion and erosion-corrosion tests of as-built Ti-6Al-4V manufactured by Selective Laser Melting were investigated using slurries composed of SiO(2)sand particles and either tap water (pure water) or 3.5% NaCl solution (artificial seawater). The microhardness value of selective laser melting (SLM)ed Ti-6Al-4V alloy increased as the impact angle increased. The synergistic effect of corrosion and erosion in seawater is always higher than erosion in pure water at all impact angles. The seawater environment caused the dissolution of vanadium oxide V(2)O(5)on the surface of SLMed Ti-6Al-4V alloy due to the presence of Cl(-)ions in the seawater. These findings show lower microhardness values and high mass losses under the erosion-corrosion test compared to those under the erosion test at all impact angles.

引用

页数：16

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