Structures and properties of lath martensite in rapidly solidified and conventionally processed iron-nickel-manganese-(titanium) maraging alloys

The microstructural changes, precipitation reactions and the mechanical properties of rapidly solidified and conventionally processed Fe-Ni-Mn-(Ti) martensitic alloys aged at 400-550$\sp\circ$C up to 600 hrs have been studied. Upon aging from 400 to 550$\sp\circ$C, the alloys showed classical age-hardening behavior and the activation energies for precipitation were calculated as 24 Kcal/mole for Fe-Ni-Mn alloys and 38-46 Kcal/mole for Ti-containing alloys, which supports precipitate nucleation and growth occurring on dislocations by a pipe diffusion mechanism.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Materials Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Kim, Sung-Joon

Contributors dc:contributor

• Wayman, C. Marvin

• Engineering, Metallurgy
• Engineering, Materials Science

Statement dc:rights

• Copyright 1990 Kim, Sung-Joon

Language dc:language

eng

Identifier

AAI9026226
(UMI)AAI9026226

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20682