Accession Number : AD1039748

Title :   Fundamental Studies on Phase Transformations and Mechanical Properties of Fusion Welds in Advanced Naval Steels

Descriptive Note : Technical Report,01 Jun 2012,31 May 2016

Corporate Author : Lehigh University, Department of Materials Science and Engineering Bethlehem United States

Personal Author(s) : DuPont, John N

Full Text :

Report Date : 31 Jul 2017

Pagination or Media Count : 21

Abstract : NUCu-140 and 10 wt% Ni steel were developed as candidate materials for use in naval and structural applications. However, prior to this research project, a fundamental understanding of the phase transformation behavior under the high heating and cooling rates associated with welding thermal cycles was not available for these alloys. For NUCu-140, the potential use of multiple thermal cycles was investigated with HAZ simulations using a Gleeble thermo-mechanical simulator. For 10 wt% Ni steel, the effect of rapid heating and cooling rates associated with welding thermal cycles was established for the first time.

Descriptors :   phase transformations , mechanical properties , yield strength , heat treatment , welding , welds , low temperature , microhardness , toughness , arc welding , arc welds , critical temperature , steel , military applications , alloys

Subject Categories : Metallurgy and Metallography
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE