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Role of Aluminium Concentration on the Structure Behaviour of Cu-Al Alloys.

机译：铝浓度对Cu-al合金结构行为的影响。

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Effect of Al(5, 10, 15 and 20)% on the structure behavior of Cu-Al alloys was investigated by both microhardness measurements and optical microscopic investigations. Pure Cu was used for comparison. The analysis of the hardness-temperature curve shows a type of dependence which obeys an empirical exponential law, but consists of several distinguishable regions. For Cu 20% Al, one region is observed, and two regions for pure Cu, while for alloys of 5 and 10% Al concentration three regions were observed. The activation energy varies between 0.03 and 0.9 ev. for these regions, depending on the Al-concentration as well as the annealing temperature. The recrystallization temperature was found to increase with increasing Al-concentration. It was also observed that Cu-20% Al alloy is very hard and brittle owing to the formation of gamma 2 phase, and also to phase separation as being detected from optical microscopic investigations. (author). 22 refs, 3 figs. (Atomindex citation 20:021698)

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Nassar, A. M.; Taha, A. S.; Ragab, K. A.; El-Mossalamy, S.;
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年度 1988
页码 1-8
总页数 8
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Bronze; Aluminium Alloys; Microhardness; Activation Energy; Binary Alloy Systems; Experimental Data; Mechanical Properties; Metallography; Recrystallization; Temperature Dependence; Foreign technology; ERDA/360102; Copper;

机译：青铜;铝合金;显微硬度;活化能;二元合金系统;实验数据;机械性能;金相学;再结晶;温度依赖性;国外技术; ERDa / 360102;铜;

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Role of Aluminium Concentration on the Structure Behaviour of Cu-Al Alloys.

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