used in the manufacture of high temperature creep performance requirements of automotive transmission parts.

  1. Alloys as the lightest metal structure material,Although since the 1990s  has been applied in the automotive industry at an annual growth rate of about 20%, However, its large-scale application is limited to some extent due to various factors, the main function of Sr in the role of magnesium alloy is mainly reflected in the grain-refinement and modification alloy.

2. Small proportion, high specific strength and stiffness, good damping and machine-ability.

3. Alloy casting performance can be improved by adding Sr into magnesium alloy. Magnesium alloy can be refined by added a small amount of strontium to magnesium alloy, improving its room temperature mechanical properties.

4. Strontium is one of the effective alloying elements. Strontium effectively refines the grain, reduces the micro-porosity, and heightens the creep resistance and heat cracking resistance performance of magnesium alloys.

5. Strontium can improve magnesium alloys’ creep resistant, tensile strength.