首页> 外文期刊>Materials Research Bulletin >EXPERIMENTAL MICROHARDNESS FOR AA 1030, Cu, CuSn7, CuZn30 AND 6114 ALLOYS AND A CORRELATION WITH THE HALL--PETCH RELATION
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EXPERIMENTAL MICROHARDNESS FOR AA 1030, Cu, CuSn7, CuZn30 AND 6114 ALLOYS AND A CORRELATION WITH THE HALL--PETCH RELATION

机译:AA 1030,Cu,CuSn7,CuZn30和6114合金的实验显微硬度及其与Hall-PET关系的相关性

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摘要

In this experimental study, the strip-formed specimens made from aluminum alloy l030, pure Cu, CuSn7, CuZn30, and low-carbon steel 6ll4 were cold worked to different ratios. To determine the microhardness values of the materials, dricro- hardness tests were applied. The grain sizes of the materials were determined by the Heyn method, using a metal microscope. The hardness of materials, H, is dependent on the grain diameter, d, in a way similar to the yield stress in the Hall-Petch relation H = H_O + K_H.d~1/2, where H_O and K_H are constants. The microhardness of the materials was found, with reasonable accuracy, to vary with grain size according to the Hall-Petch equation.
机译:在本实验研究中,将铝合金1030,纯铜,CuSn7,CuZn30和低碳钢6ll4制成的带状试样以不同的比例冷加工。为了确定材料的显微硬度值,应用了显微硬度测试。使用金属显微镜通过Heyn方法确定材料的晶粒尺寸。材料的硬度H取决于晶粒直径d,其方式类似于霍尔-Petch关系中的屈服应力H = H_O + K_H.d〜1/2,其中H_O和K_H为常数。发现材料的显微硬度具有合理的精度,并根据Hall-Petch方程随晶粒尺寸而变化。

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