Role of germanium in microstructural development of powder metallurgy Ti-20Cr-xGe alloys

Sjafrizal，Teddy1,2; Kent，Damon1,3; Dehghan-Manshadi，Ali1; Yan，Ming4; Dargusch，Matthew S.1

2020-09-01

10.1016/j.matlet.2020.127964

MATERIALS LETTERS   影响因子和分区

0167-577X

1873-4979

This paper investigates the microstructural changes after incorporating germanium (Ge) into a Ti-20Cr alloy fabricated by powder metallurgy. A positive correlation between Ge compositions and density of the sintered alloys was revealed, with limited effects on the grain size. The microstructure comprised equiaxed β phase grains and nodules of eutectoid phases (α + TiCr). Alloying more Ge to Ti-20Cr produced more α phase and broadened the nodules. This coarsening is believed to be the consequence of increasing (α-β) interfacial area, which serves as the nucleation site for TiCr. The largest proportion of α phase (~14 vol%) was obtained in the Ti-20Cr-3Ge alloy, together with the formation of TiGe intermetallic. The microstructural changes after Ge additions increase hardness by up to 13%, which may enhance the wear resistance of the alloys providing a promising alternative for dental implants.

Biomaterials Metals and alloys Microstructure Powder technology

SCI ; EI

英语

其他

ARC Research Hub for Advanced Manufacturing of Medical Devices[IH150100024]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000539960000012

ELSEVIER

20202208718434

Metal implants ; Powder metallurgy ; Powder metals ; Coarsening ; Textures ; Metals ; Wear resistance ; Chromium alloys ; Dental alloys ; Titanium alloys

Dental Equipment and Supplies:462.3 ; Prosthetics:462.4 ; Titanium and Alloys:542.3 ; Chromium and Alloys:543.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85085242771

Scopus

1.Centre for Advanced Materials Processing and Manufacturing,School of Mechanical and Mining Engineering,The University of Queensland,St Lucia,4072,Australia
2.School of Industrial Engineering,Telkom University,Bandung,40257,Indonesia
3.School of Science and Engineering,University of the Sunshine Coast,Maroochydore DC,4558,Australia
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Sjafrizal，Teddy,Kent，Damon,Dehghan-Manshadi，Ali,et al. Role of germanium in microstructural development of powder metallurgy Ti-20Cr-xGe alloys[J]. MATERIALS LETTERS,2020,274.

Sjafrizal，Teddy,Kent，Damon,Dehghan-Manshadi，Ali,Yan，Ming,&Dargusch，Matthew S..(2020).Role of germanium in microstructural development of powder metallurgy Ti-20Cr-xGe alloys.MATERIALS LETTERS,274.

Sjafrizal，Teddy,et al."Role of germanium in microstructural development of powder metallurgy Ti-20Cr-xGe alloys".MATERIALS LETTERS 274(2020).