Abstract

As study is performed of the distribution of quantitative characteristics of the steps formed by shear bands (SBs) on the surfaces of deformed samples of massive amorphous alloy Zr₆₀Ti₂Nb₂Cu_18.5Ni_7.5Al₁₀ after torsion under high quasi-hydrostatic pressure (HPT) in a Bridgman chamber at room temperature and different deformation values. Histograms are obtained for the distribution of the main characteristics of the SB (power and bulk density) in different zones of disk-shaped samples (geometric center, zone 1; middle of the radius, zone 2; edge, zone 3) on the end surfaces. The dependence of the SB characteristics on the location of the studied area of the sliding steps is established. The minimum value of the bulk density of the SB is observed for all values of n in zone 2. The SB power grows monotonically at a rate that depends on the degree of deformation from zone 1 to zone 3. The maximum height of individual steps is observed in zone 3 (4.1 μm).

中文翻译：

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基于 Zr 的非晶合金样品在布里奇曼室中受压扭转后的剪切带分布特征

摘要

研究了块状非晶合金 Zr ₆₀ Ti ₂ Nb ₂ Cu _18.5 Ni _7.5 Al ₁₀变形样品表面剪切带（SBs）形成的台阶的定量特征分布在室温和不同变形值的布里奇曼室中，在高准流体静压 (HPT) 下扭转后。得到圆盘状样品不同区域（几何中心，区域1；半径中间，区域2；边缘，区域3）的SB主要特征（功率和体积密度）在末端的分布直方图表面。建立了 SB 特性对滑动台阶研究区域位置的依赖性。对于区域 2 中的所有n值，观察到 SB 体积密度的最小值。SB 功率以取决于从区域1到区域3的变形程度的速率单调增长。在区域 3 (4.1 μm) 中观察到单个台阶的最大高度。