Effect of Y{sub 2}O{sub 3} Addition on the Microstructure, Wear Resistance, and Corrosion Behavior of W-4.9Ni-2.1Fe Heavy Alloy

Journal Article · Thu Aug 15 04:00:00 EDT 2019 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-019-04251-4· OSTI ID:22970522

Zhang, Xuehui; Zhu, Shengjian ^[1]; Zhang, Biao ^[2]; Ahmad, Tahir; Wang, Chunming ^[1]; Zhou, Liangliang ^[3]; Liang, Tongxiang; Yang, Bin ^[1]

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1. Jiangxi University of Science and Technology, Faculty of Materials Metallurgy and Chemistry (China)
2. University of Science and Technology Beijing, Institute of Advanced Materials and Technology (China)
3. South China University of Technology, School of Materials Science and Engineering, Key Laboratory of Advanced Energy Storage Materials of Guangdong Province (China)

Binding and particle phases are the two important parameters influencing materials properties. In this study, a series of novel W-4.9Ni-2.1Fe-xY{sub 2}O{sub 3} (in weight%) alloys with different Y{sub 2}O{sub 3} contents are prepared by secondary ball milling and spark plasma sintering (SPS) techniques to obtain uniformly distributed γ-(Ni, Fe) binding phases and finer grains. The microstructure, mechanical, wear resistance, and corrosion behavior of the sintered bodies with different Y{sub 2}O{sub 3} were obtained by x-ray diffraction, scanning electron microscopy, Rockwell hardness tester, friction wear tester, and three-dimensional profile instruments. The results showed that a certain addition of Y{sub 2}O{sub 3} led to refined grains and uniformed microstructures; but, if excessive, a weak grain refinement would be appeared. Moreover, the grain size tends to be stable with enhancing of the Y{sub 2}O{sub 3} content. Considering properties such as density, hardness, compression yield strength, grain size, and uniform distribution of tungsten hard phase and γ-(Ni, Fe) binding phase, the comprehensive optimal amount of 0.7 wt.% of Y{sub 2}O{sub 3} was attained for the alloy. Meanwhile, the SPS sintered body also exhibited the best friction, wear behavior, and corrosion resistance in 3.5% of NaCl solution.

• OSTI ID: 22970522
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 8 Vol. 28; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CORROSION RESISTANCE
GRAIN REFINEMENT
GRAIN SIZE
IRON
OXIDATION
SCANNING ELECTRON MICROSCOPY
SINTERING
SODIUM CHLORIDES
TUNGSTEN ALLOYS
WEAR RESISTANCE
X-RAY DIFFRACTION
YIELD STRENGTH
YTTRIUM OXIDES