Effect of molybdenum on the microstructure, mechanical properties and corrosion behavior of Ti alloys

✍ Scribed by Lee, Eung-Beom; Han, Mi-Kyung; Kim, Bong-Jun; Song, Ho-Jun; Park, Yeong-Joon

• Book ID: 123613526
• Publisher: Carl Hanser Verlag
• Year: 2014
• Tongue: English
• Weight: 527 KB
• Volume: 105
• Category: Article
• ISSN: 1862-5282
• DOI: 10.3139/146.111092

✦ Synopsis

Effect of molybdenum on the microstructure, mechanical propertiesand corrosion behavior of Ti alloys

In order to study the effect of Mo on the microstructure, mechanical properties and corrosion behavior of commercially pure titanium (cp-Ti), Ti-x Mo ( x=5, 10, 15, and 20 wt.%) alloys werei nvestigated. The phase and microstructures were characterized using X-ray diffraction, optical microscopy,scanning electron microscopy and transmission electron microscopy. The results indicatedt hat the Ti-5Mo alloy was mainly composed of a ' phase withasmallfraction of a @ phase. The Ti-10Mo was dominated by orthorhombic a @ .T he Ti-15Mo alloyw as mainly composed of a @ phase with asmall fraction of b phase. The volume percentageof the b phase increased withincreasingMocontent. The Ti-20Mo alloy was mainly composed of b phase.Wealso investigated the effect of alloyingw ith Mo on the Vickers hardness and corrosion behavior of Ti-x Mo alloys. The addition of Mo not only caused hardening of cp-Ti but also improved its oxidation protective ability. Electrochemical results showed that the Ti-x Mo alloys exhibited improved corrosion resistance over cp-Ti.