Gravitational effects on the gas tungsten arc welds of 304 stainless steels

Namhyun Kang; Jogender Singh; Anil K. Kulkarni

doi:10.1081/AMP-120022496

Gravitational effects on the gas tungsten arc welds of 304 stainless steels

Namhyun Kang, Jogender Singh, Anil K. Kulkarni

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Gravitational effects on gas tungsten arc welding (GTAW) of 304 stainless steels were studied to determine the behavior of the weld pool geometry, and its impact on microstructure and solute distribution. This was accomplished through both a KC-135 flight experiment and a ground-based experiment. Gravitational level variation from low gravity (LG) (∼1.2 g) to high gravity (HG) (∼1.8 g) caused a 10% increase in weld width and a 10% decrease in depth, while maintaining the overall weld pool volume. Regardless of the gravitational level, the ferrite content and the solutes (Cr and Ni) distribution in the duplex microstructure remained constant within the measurement scatter.

Original language	English (US)
Pages (from-to)	549-561
Number of pages	13
Journal	Materials and Manufacturing Processes
Volume	18
Issue number	4
DOIs	https://doi.org/10.1081/AMP-120022496
State	Published - Jul 2003

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1081/AMP-120022496

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title = "Gravitational effects on the gas tungsten arc welds of 304 stainless steels",

abstract = "Gravitational effects on gas tungsten arc welding (GTAW) of 304 stainless steels were studied to determine the behavior of the weld pool geometry, and its impact on microstructure and solute distribution. This was accomplished through both a KC-135 flight experiment and a ground-based experiment. Gravitational level variation from low gravity (LG) (∼1.2 g) to high gravity (HG) (∼1.8 g) caused a 10% increase in weld width and a 10% decrease in depth, while maintaining the overall weld pool volume. Regardless of the gravitational level, the ferrite content and the solutes (Cr and Ni) distribution in the duplex microstructure remained constant within the measurement scatter.",

author = "Namhyun Kang and Jogender Singh and Kulkarni, {Anil K.}",

note = "Funding Information: The research was supported by NASA Materials Microgravity Division, Grant NAG8-1272. The XRD research was sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by Lockheed Martin Energy Research Corp. for the U.S. Department of Energy under contract number DE-AC05-96OR22464.",

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AU - Kulkarni, Anil K.

N1 - Funding Information: The research was supported by NASA Materials Microgravity Division, Grant NAG8-1272. The XRD research was sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by Lockheed Martin Energy Research Corp. for the U.S. Department of Energy under contract number DE-AC05-96OR22464.

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N2 - Gravitational effects on gas tungsten arc welding (GTAW) of 304 stainless steels were studied to determine the behavior of the weld pool geometry, and its impact on microstructure and solute distribution. This was accomplished through both a KC-135 flight experiment and a ground-based experiment. Gravitational level variation from low gravity (LG) (∼1.2 g) to high gravity (HG) (∼1.8 g) caused a 10% increase in weld width and a 10% decrease in depth, while maintaining the overall weld pool volume. Regardless of the gravitational level, the ferrite content and the solutes (Cr and Ni) distribution in the duplex microstructure remained constant within the measurement scatter.

AB - Gravitational effects on gas tungsten arc welding (GTAW) of 304 stainless steels were studied to determine the behavior of the weld pool geometry, and its impact on microstructure and solute distribution. This was accomplished through both a KC-135 flight experiment and a ground-based experiment. Gravitational level variation from low gravity (LG) (∼1.2 g) to high gravity (HG) (∼1.8 g) caused a 10% increase in weld width and a 10% decrease in depth, while maintaining the overall weld pool volume. Regardless of the gravitational level, the ferrite content and the solutes (Cr and Ni) distribution in the duplex microstructure remained constant within the measurement scatter.

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Gravitational effects on the gas tungsten arc welds of 304 stainless steels

Abstract

All Science Journal Classification (ASJC) codes

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