The Effects of Titanium on the Mechanical Properties of Shielded Metal Arc Welding (SMAW) of C-MN Steels

reportActive / Technical Report | Accession Number: ADA331716 | Open PDF

Abstract:

The strength and toughness of low alloy steel shielded metal arc weld SMAW metal is markedly improved by the presence of the microconstituent acicular ferrite. Since acicular ferrite is nucleated by the non-metallic inclusions present in the weld metal. Its presence is determined by the size, number, distribution and chemical composition of these inclusions. Previous work has shown that inclusions containing no titanium are usually ineffective as nucleates of acicular ferrite in some C-Mn steel weld metal whereas inclusions containing small amounts less than 5 of titanium or more can produce a microstructure containing as much as 70 of acicular ferrite.

Author(s):
Greene, Michael K.
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MECHANICAL ENGINEERING
Descriptive Note:
Master's thesis
Pagination:
0108

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NPS-ME
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.1_Information Transport; JCA_3.2.1_Kinetic Means; JCA_1.2.5_Lessons Learned; JCA_1.2.7_Experimentation; JCA_4.6_Engineering; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_8_Building Partnerships
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*WELD METAL, *TITANIUM, *LOW ALLOY STEELS, MECHANICAL PROPERTIES, SCANNING ELECTRON MICROSCOPES, MICROSTRUCTURE, THESES, TOUGHNESS, INCLUSIONS, FERRITES, ARC WELDING
Field(s)/Group(s):
Properties of Metals and Alloys, Mechanics, Marine Engineering
Keyword(s):
*CARBON MANGANESE STELL WELDMENTS, NON METALIC INCLUSIONS, ACICULAR FERRITE
Report Date:
1997 Mar 01
Creation Date:
1997 Dec 03