USA As Represented by Secretary of the Navy

Northwestern University

Ryobi Limited

Morris E Fine

Harris L Marcus

Yip-Wah Chung

Takao Miyoshi

Semyon Vaynman

Akio Urakami

Hiroyuki Ohmura

Zwy Eliezer

Johannes Weertman

Evan T Hunt

In one aspect of the invention, an alloy includes a first element comprising magnesium (Mg), titanium (Ti), zirconium (Zr), chromium (Cr), or nickelaluminum (NiAl), a second element comprising lithium (Li), calcium (Ca), manganese (Mn), aluminum (Al), or a combination thereof, and a third element comprising zinc (Zn). According to the invention, nanoscale precipitates is produced in the magnesium alloy by additions of zinc and specific heat-treatment. These precipitates lower the energy for dislocation movements and increase the number of available slip systems in the magnesium alloy at room temperature and hence improve ductility and formability of the magnesium alloy.

Alloys and methods of forming same

A process for forming a copper alloy which is strengthened while maintaining good electrical and thermal conductivity by the addition of TiN or ZrN consists of external nitridation of a mechanically alloyed powder mixture followed by further mechanical alloying to break down the surface coating which forms during nitridation.

Method of making copper-titanium nitride alloy

A matrix of an Al-Ni base alloy or an Al-Si-Cu base alloy is strengthened by dispersion of particles of Ni, Si or at least one intermetallic compound selected from among AlNi, Al.sub.3 Ni, Al.sub.3 Ni.sub.2 and AlNi.sub.3.

Alloys strengthened by dispersion of particles of a metal and an

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Wilmette, IL, United States of America

Morris E Fine