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首页> 外文期刊>Journal of Materials Engineering and Performance >Microstructure, Texture, and Mechanical Properties of Ni-W Alloy After Accumulative Roll Bonding
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Microstructure, Texture, and Mechanical Properties of Ni-W Alloy After Accumulative Roll Bonding

机译：累积辊粘合后Ni-W合金的微观结构，质地和力学性能

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摘要

In this study, the microstructure, texture, and mechanical properties evolution of Ni-14W (wt.%) alloy processed up to four cycles of accumulative roll-bonding (ARB) were investigated using electron backscatter diffraction, microhardness measurements, and tensile tests. The initial equiaxed grains, with an average size of 10?μm, underwent a strong refinement after ARB processing. The elongated ultrafine grains were parallel to the rolling direction, with a grain thickness of 0.2?μm. The texture after ARB processing was characterized by the typical rolling components (Copper, S and Brass), which showed a tendency toward stabilization after four cycles. The microhardness increased substantially (+?86%) and seemed to saturate after three cycles. The tensile tests demonstrated that Ni-14W samples subjected to ARB processing exhibited high strength (>?1200?MPa after three ARB cycles) and very poor ductility.
机译：在该研究中，使用电子背散射衍射，微硬度测量和拉伸试验研究了高达四个循环累积辊粘合（arb）的Ni-14w（wt.％）合金的微观结构，质地和机械性能。 初始等式晶粒，平均尺寸为10Ωμm，在ARB加工后经历了强大的细化。 细长的超细晶粒平行于轧制方向，粒度为0.2≤μm。 ARB处理之后的纹理的特征在于典型的轧制部件（铜，S和黄铜），其显示出四个循环后稳定的趋势。 显微硬度大幅增加（+→86％），似乎在三个循环后饱和。 拉伸试验证明，进行ARB处理的Ni-14W样品在三个阶下的强度（>α1200≤MPa）和非常差的延展性。

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