Nanoscale Tribological Properties of Nanostructure Fe3Al and (Fe,Ti)3Al Compounds Fabricated by Spark Plasma Sintering Method

被引：3
作者：
Taghvaei, Mohammad Mahdi [1 ]
Mostaan, Hossein [1 ]
Rafiei, Mahdi [2 ]
Bakhsheshi-Rad, Hamid Reza [2 ]
Berto, Filippo [3 ]
机构：
[1] Arak Univ, Fac Engn, Dept Mat & Met Engn, Arak 3815688349, Iran
[2] Islamic Azad Univ, Adv Mat Res Ctr, Dept Mat Engn, Najafabad Branch, Najafabad, Iran
[3] Norwegian Univ Sci & Technol, Dept Mech & Ind Engn, N-7491 Trondheim, Norway
来源：
METALS | 2022年 / 12卷 / 07期
关键词：
iron aluminides; spark plasma sintering; nanoscratch; nanohardness; mechanical alloying; STAINLESS-STEEL POWDERS; NANO-STRUCTURED DUPLEX; MECHANICAL-PROPERTIES; FE3AL-BASED ALLOYS; THERMODYNAMIC ANALYSIS; PHASE-FORMATION; AL; MICROSTRUCTURE; NANOCRYSTALLINE; BEHAVIOR;
D O I：
10.3390/met12071077
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanostructured powder particles of Fe3Al and (Fe,Ti)(3)Al phases were produced using mechanical alloying. These intermetallic phases with a nearly complete density were consolidated by spark plasma sintering. The mechanical properties of the bulk samples, i.e., elasticity modulus, hardness, and plasticity index, and also their tribological behavior were investigated using nanoindentation and nano-scratch tests. It was found that both Fe3Al and (Fe,Ti)(3)Al phases can be synthesized after 30 h of high-energy ball milling. In addition, no phase evolution was observed after spark plasma sintering. An analysis of the atomic force microscope images obtained from the nanoindentation tests showed a higher elasticity modulus, higher hardness, and lower plasticity index due to the addition of Ti to the Fe3Al system. (Fe,Ti)(3)Al displayed better tribological properties as compared with Fe3Al. A smaller volume of the scratched line was clearly seen in the atomic force microscope images of the nanostructured (Fe,Ti)(3)Al compound.
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页数：14
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