Particulate-Reinforced Tungsten Heavy Alloy/Yttria-Stabilized Zirconia Composites Sintered Through Spark Plasma Sintering

被引：4
|
作者：
Muthuchamy, A. [1 ]
Boggupalli, Lakshmi Prasad [1 ]
Yadav, L. Digvijay Rajendra [1 ]
Kumar, L. N. Naveen [2 ]
Agrawal, Dinesh K. [3 ]
Annamalai, A. Raja [4 ]
机构：
[1] VIT Vellore, Sch Mech Engn, Dept Mfg Engn, Vellore 632014, Tamil Nadu, India
[2] Vignans Inst Informat Technol Autonomous, Dept Mech Engn, Visakhapatnam 530049, Andhra Pradesh, India
[3] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
[4] VIT Vellore, Ctr Innovat Mfg Res, Vellore 632014, Tamil Nadu, India
来源：
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2020年 / 45卷 / 11期
关键词：
8 mol % yttria-stabilized zirconia; Oxide dispersion strengthening; Spark plasma sintering; Tungsten heavy alloys; DYNAMIC DEFORMATION-BEHAVIOR; MECHANICAL-PROPERTIES; YTTRIUM-OXIDE; MICROSTRUCTURE; NI; TEMPERATURE; ALLOY; PERFORMANCE; FABRICATION; STRAIN;
D O I：
10.1007/s13369-020-04732-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The current work investigates the mechanical properties of W-Ni-Fe tungsten heavy alloy (WHA) composites reinforced with 0.25, 0.5, 0.75 and 1.0 wt% of yttria-stabilized zirconia (YSZ). The composites were fabricated through spark plasma sintering (SPS) technique. Detailed microstructural characterization of the sintered samples, including contiguity, grain size and matrix volume fraction, was carried out. It was found that the W-W contiguity was decreasing with increasing amount of YSZ. Hardness and yield strength of the sintered samples were found to be decreasing with the increasing amount of YSZ. The WHA with 0.25 wt% YSZ exhibited the highest mechanical properties among all compositions chosen for this study. Fractography revealed W-W intergranular fracture indicating a brittle mode failure.
引用
收藏
页码：9283 / 9291
页数：9
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