Investigating the Tribology, Vickers Hardness and Microstructure of Ti20-Al20-V20-Fe20-Ni20 HEA Developed with SPS

被引：2
|
作者：
Ujah, C. O. [1 ,3 ]
Popoola, A. P., I [1 ]
Popoola, O. M. [2 ]
Uyor, U. O. [1 ]
机构：
[1] Tshwane Univ Technol, Dept Chem Met & Mat Engn, Pretoria, South Africa
[2] Tshwane Univ Technol, Dept Elect Engn, Pretoria, South Africa
[3] Univ Nigeria, Africa Ctr Excellence Sustainable Power & Energy, Nsukka, Nigeria
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2022年 / 75卷 / 12期
关键词：
High-entropy alloy; Tribology; Vickers hardness; Coefficient of friction; Wear rate; Spark plasma sintering; HIGH-ENTROPY ALLOYS; MECHANICAL-PROPERTIES; WEAR BEHAVIOR; PURE IRON; TRANSFORMATION; TEMPERATURE; STRENGTH; DESIGN; SYSTEM;
D O I：
10.1007/s12666-022-02682-7
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
High-entropy alloy (HEA) has gained considerable interest in the research community because of its essential properties over conventional alloys. Hence, this work was aimed at development of Ti20-Al20-V20-Fe20-Ni20 HEA with the objective of determining its suitability in high-strength applications. Spark plasma sintering (SPS) was the fabrication technique used. SEM-EDS and XRD were used in the characterization, while nanoindenter and tribometer were used in the Vickers hardness and wear testing, respectively. Results obtained showed that sintering temperature of 1100 celcius was the optimal temperature. The developed HEA had Vickers hardness improvement of 130% over Ti6Al4V alloy, wear rate improvement of 130% over Inconel 718 alloy and 666% over TiAl alloy. It was concluded that the developed HEA can perform much better than the famous Ti6Al4V superalloy in high-temperature/strength applications.
引用
收藏
页码：3029 / 3038
页数：10
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