Structure and Hardness of the ZnAI40Cu(1-2)Ti(1-2) Alloys

摘要

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, ZnA140Cul.5Til.5 and ZnA140Ti2Cu 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 ZnA140Cu(1-2)Ti(1-2) alloys are characterized by homogeneous, finegrained structure. Carried out tests pointed out, that addition of titanium to ZnA140Cu(1-2)Ti(1-2) alloy influences on hardness increasing. It was also found, that the titanium forms Ti-Al precipitates in ZnA140Cu(1-2)Ti(1-2) alloys and does not take part in solution strengthening process.