Details

Project TitleRoom Temperature Formable and Ductile Hexagonal Magnesium Alloys
Track Code2013-127
Short Description

A strategy to produce magnesium alloys that are highly formable and ductile at room temperature.

#materials #metals

Abstract

Magnesium's density is 34% less than that of aluminum. For weight saving and better energy efficiency the aerospace and automotive industries want to increase the use of magnesium alloys. However, because of its hexagonal crystal structure magnesium and its current alloys crack easily at room temperature. Magnesium alloys thus lack the needed ductility and formability at room temperature, therefore, they are mainly used as-cast or they are formed (pressed, stamped, etc.) at elevated temperatures. Northwestern researchers have developed a strategy to produce magnesium alloys that are highly formable and ductile at room temperature. The method includes creation of nano-sized precipitates in magnesium alloy matrix by addition of alloying elements and by specific heat-treatment. These precipitates lower the energy for dislocation movement and increase the number of available slip systems in magnesium alloy at room temperature and hence improve ductility and formability.

 
TagsMATERIALS: metals
 
Posted DateApr 11, 2014 3:38 PM

Inventor(s)

Morris E. Fine
Semyon Vaynman
Evan Hunt
Akio Urakami
Yip-Wah Chung*
Johannes Weertman

Applications

  • Automotive industry
  • Aerospace industry

Advantages

  • Easily formable at room temperature
  • No thermo-mechanical processing

Publications

IP Status

A provision patent application has been filed.

Contact Information

Zach Brown, PhD
Invention Associate  

(p) 847-491-4629

(e) Zachary.Brown@northwestern.edu