The effect of thermal cycles on high strength steel SMA weld metal microstructures and properties
- Colorado School of Mines, Golden, CO (United States)
- Oerlikon Welding Ltd., Zurich (Switzerland)
The relationship between as-deposited and thermally cycled high strength steel shielded metal arc weld metal microstructures and properties was studied. As-deposited weld metals, with similar chemical composition and both coarse and fine initial microstructures, were thermally cycled to simulate multiple-pass weld metal heat-affected zones. The microstructures and properties in the simulated weld metals were found to depend primarily upon chemical composition and final thermal history and, to a lesser extent, upon initial microstructure. The influence of titanium additions to low-carbon-1.5Mn-3Ni-0.5Mo weld metal was also investigated. Regardless of the thermal cycle imposed, weld metals with the best toughness contained approximately 30 ppm titanium or 240 ppm titanium, while degraded toughness was measured in weld metals containing titanium concentrations of 0 ppm and 100 ppm.
- OSTI ID:
- 442983
- Report Number(s):
- CONF-950682-; ISBN 0-87170-567-2; TRN: IM9712%%408
- Resource Relation:
- Conference: 4. international conference on trends in welding research, Gatlinburg, TN (United States), 5-9 Jun 1995; Other Information: PBD: 1996; Related Information: Is Part Of Trends in welding research: Proceedings of the 4. international conference; Smartt, H.B.; Johnson, J.A. [eds.] [Idaho National Engineering Lab., Idaho Falls, ID (United States)]; David, S.A. [ed.] [Oak Ridge National Lab., TN (United States)]; PB: 836 p.
- Country of Publication:
- United States
- Language:
- English
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