Abstract
The purpose of the examination was to determination of influence of microstructure and hardness of Zn-Al-Cu alloys with titanium addition. The subject of examination was were ZnAl40Cu2Ti, ZnAl40Cu1.5Ti1.5 and ZnAl40Ti2Cu alloys. The scope of test included Brinell hardness tests, tests on optical microscope, tests on scanning microscope and X-ray microanalysis. It was found that tested ZnAl40Cu(1-2)Ti(1-2) alloys are characterized by homogeneous, fine- grained structure. Carried out tests pointed out, that addition of titanium to ZnAl40Cu(1-2)Ti(1-2) alloy influences on hardness increasing. It was also found, that the titanium forms Ti-Al precipitates in ZnAl40Cu(1-2)Ti(1-2) alloys and does not take part in solution strengthening process.
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