Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti-Cu Alloys

Dong, Rui1,2; Zhu, Weiwei1; Zhao, Cancan1; Zhang, Yiwen1; Ren, Fuzeng1

2018-12

10.1007/s11661-018-4953-0

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   影响因子和分区

1073-5623

1543-1940

Ti-Cu alloys have attracted significant interests for use in dental and orthopedic implants because of excellent antibacterial activity. However, limited research efforts have been devoted to their sliding wear behavior. Herein, we have fabricated nearly fully dense ultra-fine-grained Ti-Cu alloys with the Cu contents of 5 and 25at.pct using a combination of high energy ball milling and spark plasma sintering (SPS) and systematically investigated their microstructure, mechanical properties, and sliding wear behavior. The results show that the Ti95Cu5 alloy consists of Ti2Cu precipitates uniformly distributed in an -Ti matrix. This particular microstructure results in excellent mechanical properties, including a compressive yield strength of up to 1593MPa, compressive strength of over 2400MPa, and fracture strain of up to 26.8pct. Conversely, the bulk Ti75Cu25 alloy consists mainly of Ti2Cu with a small amount of -Ti and exhibited a slightly higher yield strength but reduced compressive strength and fracture strain. The hardness and yield strength of the Ti-Cu alloys were approximately three times and one order of magnitude higher, respectively, than those of commercially pure Ti. Sliding wear tests reveal that the wear mechanism of the ultra-fine-grained Ti-Cu alloys is distinct from that of CP-Ti and that the wear resistance is enhanced with increasing Ti2Cu content.

SCI ; EI

英语

第一 ; 通讯

Fundamental Research Program of Shenzhen[JCYJ20170307110418960] ; Fundamental Research Program of Shenzhen[JCYJ20170412153039309] ; Fundamental Research Program of Shenzhen[JCYJ20160530185550416]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000450297300028

SPRINGER

20184305993794

Ball milling ; Binary alloys ; Compressive strength ; Copper alloys ; Dental alloys ; Dental prostheses ; Mechanical properties ; Microstructure ; Spark plasma sintering ; Strain ; Wear of materials ; Wear resistance ; Yield stress

Dental Equipment and Supplies:462.3 ; Titanium and Alloys:542.3 ; Copper Alloys:544.2 ; Chemical Operations:802.3 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China
2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin, Heilongjiang, Peoples R China

Dong, Rui,Zhu, Weiwei,Zhao, Cancan,et al. Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti-Cu Alloys[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2018,49A(12):6147-6160.

Dong, Rui,Zhu, Weiwei,Zhao, Cancan,Zhang, Yiwen,&Ren, Fuzeng.(2018).Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti-Cu Alloys.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,49A(12),6147-6160.

Dong, Rui,et al."Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti-Cu Alloys".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 49A.12(2018):6147-6160.