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Microstructure, Fracture Characteristics, and Tensile Properties of Two TungstenHeavy Alloys

机译：两种钨合金的组织，断裂特征和拉伸性能

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The influence of microstructure on fracture behavior and tensile properties wasinvestigated for two tungsten heavy alloys (93W-4.9Ni-2.1Fe and 91W-6Ni-3Co by weight-percentage) that are suitable materiai candidates for use as kinetic energy penetrators. Both alloys were evaluated in swaged and aged conditions. For comparable levels of swaging and aging, the W-Ni-Co alloy exhibited increased tensile strength and ductility compared to the W-Ni-Fe material. The W-Ni-Co alloy had a smaller average W grain size and a larger percentage of W in the matrix. Fracture surfaces of failed uniaxial tensile specimens tested at quasi-static and low-to-medium strain rates were characterized using scanning electron microscopy. The results indicate a strong relationship between microstructure, fracture behavior, and tensile properties as a function of alloy composition and strain rate. (MM).

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作者
Kennedy, E. W.;
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年度 1995
页码
总页数 39
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Fracture(Mechanics); Kinetic energy projectiles; Tungsten alloys; Heavy metals; Tensile strength; Scanning electron microscopes; Microstructure; Aging(Materials); Tensile properties; Grain size; Alloys; Strain rate; Electron microscopy; Iron; Penetration;

机译：断裂（力学）;动能弹丸;钨合金;重金属;拉伸强度;扫描电子显微镜;显微组织;时效（材料）;拉伸性能;晶粒尺寸;合金;应变率;电子显微镜;铁;渗透;

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Microstructure, Fracture Characteristics, and Tensile Properties of Two TungstenHeavy Alloys

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