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利用分离式霍普金森压杆(SHPB)装置,对体积分数为60%和80%的钨丝增强锆基非晶合金复合材料进行了动态压缩实验,采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)研究了复合材料的原始组织以及动态变形特征和断口形貌.结果表明:在动态压缩载荷作用下,W丝/Zr基非晶复合材料没有明显的屈服现象即发生断裂;试样的动态压缩强度随着钨丝体积分数的增加而增加,体现了钨丝增强体对复合材料显著的强化作用;试样发生剪切断裂和纵向劈裂,在变形过程中钨丝发生劈裂并有屈曲失稳和翘起,非晶基体表现为软化后的脉状花样和脊状形貌,钨丝体积分数的不同,复合材料呈现出不同的断口特征.

参考文献

[1] A.Inoue .Stabilization of metallic supercooled liquid and bulk amorphous alloys[J].Acta materialia,2000(1):279-306.
[2] Conner R D;Dandliker R B;Johnson W L .Mechanical properties of tungsten and steel fiber reinforced Zr41.25Ti13.75Ni10Be22.5 metallic glass matrix composites[J].Acta Materialia,1998,46:6089-6102.
[3] Choi-Yim H;Busch R;K6hster U et al.Synthesis and characterization of particulate reinforced Zr57Ni5Al10Cu15.4Ni12.6bulk metallic glass composites[J].Acta Materialia,1999,47:2455-2462.
[4] Choi-Yim H;Busch R;Johnson W L .Processing of carbonfiber-reinforced Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 bulk metallic glass composites[J].Journal of Applied Physics,1998,83:7993-7997.
[5] Wu X F;Qiu K P;Zhang H F et al.Effect of SiCP on the glass forming ability and thermal stability of Zr55Al10Ni5Cu30 bulk metallic slass[J].ACTA METALLURGICA SINICA,2003,39:414-418.
[6] Xu Y K;Xu J .Ceramics particulate reinforced Mg65Cu20Zn5Y10 bulk metallic glass composites[J].Scfipta Materialia,2003,49:843-848.
[7] Dandliker R B;Conner R D;Johnson W L .Melt infiltration casting of bulk metallic-glass matrix composites[J].Journal of Materials Research,1998,13:2896-2901.
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