Solidification Process, Microstructure, Density and Hardness of the Mg-Al Alloys with Zn, Cu, Ni and AlTiB Additions
|Periodical||Solid State Phenomena (Volume 176)|
|Main Theme||Light Metals and their Alloys I - Technology, Microstructure and Properties|
|Edited by||Agnieszka Botor-Probierz and Andrzej Kiełbus|
|Citation||Franciszek Binczyk, 2011, Solid State Phenomena, 176, 91|
|Online since||June, 2011|
|Keywords||Density, Derivative Thermal Analysis, Eutectics, Hardness, Mg Alloy, Microstructure, Solidification Process, Temperature|
The paper presents the results of the investigations of the solidification process of magnesium alloys containing 5 and 10 wt.% Al, the additions of Zn, Cu, Ni, and of an AlTiB master alloy. The plotted DTA (derivative thermal analysis) curves were used for the determination of solidification parameters Tliq, Teut and Tsol. Knowledge of these parameters is very important in determination of alloy pouring temperature and maximum casting operating temperature. On samples taken from the area of temperature measurements, the chemical composition and microstructure were determined. The density and hardness HB were measured as well. Applying the method of multiple regression analysis at the significance level α = 0.1, the intensity and direction of the effect of alloying elements on the solidification parameters, density and hardness HB of castings were evaluated.