Effect of ball-milling and shot-peening on Zr55Al10Ni5Cu30 alloys
Effect of ball-milling and shot-peening on Zr55Al10Ni5Cu30 alloys
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DOI：
10.1016/j.jallcom.2006.04.050
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发表时间：
2007-03
影响因子：
6.2
通讯作者：
Tokujirou Yamamoto;Tsuyoshi Takahashi;H. Kimura;A. Inoue
中科院分区：
文献类型：
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作者：
Tokujirou Yamamoto;Tsuyoshi Takahashi;H. Kimura;A. Inoue
用差示扫描量热法、X射线衍射法和透射电镜研究了球磨和喷丸处理对具有大过冷液相区的非晶合金Zr_（55）Al_（10）Ni_（55）Cu_（30）的影响。分别采用熔体快淬法、气体雾化法和模夹铸造法制备了金属非晶薄带、粉末和板材。球磨100小时左右，带状试样和粉末试样均未观察到结构变化;但球磨540小时后，粉末试样因Fe污染而晶化。当板状试样经受喷丸时，也没有观察到结构演变，而结晶的板状试样容易通过温和的短周期喷丸而非晶化。这些结果表明，Zr_（55）Al_（10）Ni_（55）Cu_（30）非晶合金具有较高的相稳定性。
Effect of ball-milling and shot-peening on a metallic glass Zr55Al10Ni5Cu30, which possesses a large supercooled liquid region, has been investigated by means of differential scanning calorimetry, x-ray diffractometry and transmission electron microscopy. Metallic glassy ribbons, powders and plates were prepared by melt-spinning, gas-atomizing and mold-clamp casting techniques, respectively. No structural changes were observed in both the ribbon and powder specimens by ball-milling for around 100h; however, the powder specimens were crystallized by Fe contamination when they were ball-milled for 540h. No structural evolution was also observed when the plate specimens were subjected to shot-peening, while crystallized plate specimens were easily amorphized by mild and short period shot-peening. These results imply high phase stability of the Zr55Al10Ni5Cu30metallic glass against deformation.