MORRIS COHEN
Engineering in Swampscott, MA
License number
Massachusetts 11747
Issued Date
Dec 22, 1959
Expiration Date
Jun 30, 1984
Type
Metallurgical Engineer
Address
Address
Swampscott, MA 01907
Professional information
Hydrogen-Resistant High-Strength Steels And The Method For The Manufacture Thereof
US Patent:
4836869, Jun 6, 1989
Filed:
Nov 25, 1987
Appl. No.:
7/125487
Inventors:
Gregory B. Olson - Winchester MA
John F. Watton - Belmont MA
Morris Cohen - Swampscott MA
John F. Watton - Belmont MA
Morris Cohen - Swampscott MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C22C 3800
US Classification:
148331
Abstract:
A high-strength steel having improved resistance to hydrogen embrittlement characterized as being essentially free of manganese and having a stable rare earth oxymetalloid dispersion consisting of, e. g. , lanthanum oxysulfide and lanthanum phosphate. The steel prepared using rapid solidification processing coupled with late addition of the rare earth.