ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Utilizing alternating welding process parameters, deposition practices, and weldingconsumables, particularly during multiple pass welding, it is possible to improve a variety of weldmetal properties. There are available a number of phenomena occurring during welding that allowweld metal designers the ability to generate macro- and micro-structural features amenable toimplementation of composite theory. These phenomena include solidification microsegregationduring dendrite growth, gas-metal reactions between the selected alternating shielding gascomposition and weld pool, and solidification microstructural orientation during welding.Additional methods of producing composite welds including specially designed weld compositions,weld metal solidification modification by arc pulsing, and dual wire deposition may be utilized toachieve single pass and multipass composite weld metal deposition. Composite welds are apotential method to solve challenging demands such as high-toughness at low temperature, creepstrength at high temperature, and customized design for corrosion, wear, or cracking resistance
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.580-582.307.pdf
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