Different Effects of Calcium and Zinc as a Solute Element on the Fatigue Properties in Simulated Body Fluids of Magnesium Alloys.

Autor: Naoko Ikeo, Taichi Uemura, Akihito Taguma, Toshiji Mukai
Předmět:
Zdroj: Materials Transactions; 2021, Vol. 62 Issue 12, p1806-1809, 4p
Abstrakt: This study aimed to investigate the effects of alloying elements on the fatigue properties of magnesium in simulated body fluids. The fatigue life of the MgZn alloy in air was longer than that of MgCa. This result is in accordance with the tensile yield stress. Crack propagation occurred along the grain boundaries in MgCa and among the grains in MgZn because zinc addition significantly effects grain boundary strengthening. In contrast, the fatigue life in simulated body fluid was longer for the MgCa alloy than for the MgZn alloy at a lower stress amplitude. These results suggest that the use of both calcium and zinc as additives contributes to the further improvement of the fatigue life of magnesium in simulated body fluids as the immersion time is prolonged. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index