165 0

Effect of titanium content on weld microstructure and mechanical properties of bainitic GMA welds

Title
Effect of titanium content on weld microstructure and mechanical properties of bainitic GMA welds
Author
이창희
Keywords
GMA welding; Weld metal; Microstructure; Titanium; Inclusions; C-MN STEEL; ACICULAR FERRITE; INCLUSION CHARACTERISTICS; INTRAGRANULAR NUCLEATION; TI; METALS; DEPOSITS; AL
Issue Date
2014-11
Publisher
SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Citation
WELDING IN THE WORLD; NOV 2014, 58 6, p893-p901, 9p.
Abstract
The effects of titanium content on the weld microstructure, mechanical properties, and inclusion characteristics were investigated in the as-deposited bainitic GMA weld metals having nearly constant level of oxygen content. It was found that titanium addition enhanced the formation of acicular ferrite with the maximum proportion being obtained at similar to 0.07 wt% Ti. The resultant change in weld microstructure with titanium content was well reflected in the Charpy impact toughness showing the lowest ductile-brittle transition temperature at 0.07 wt% Ti. Detailed TEM and STEM analysis preformed on weld metal inclusions demonstrated that the maximum acicular ferrite recorded in this weld is mainly attributable to the formation of manganese-depleted zone (MDZ) associating with the formation of nonmetallic inclusions dominant with Ti2O3 phase.
URI
http://link.springer.com/article/10.1007/s40194-014-0168-1http://hdl.handle.net/20.500.11754/48781
ISBN
1878-6669
ISSN
0043-2288
DOI
10.1007/s40194-014-0168-1
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE