High-Density Infrared Cladding of Ta on Steel

High-Density Infrared Cladding of Ta on Steel

The addition of tantalum to the inside diameter of a gun barrel would reduce erosion during firing of medium and large caliber guns. In this work, chemical vapor deposited (CVD) Ta was bonded to A723 Steel. High-density infrared (HDI) heating was employed to bond Ta to steel at 1440 ° C while mainta...

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Veröffentlicht in:Materials and manufacturing processes 2006-09, Vol.21 (6), p.612-617
Hauptverfasser: Rivard, John D. K., Blue, Craig A., Harper, David C., Stiglich, Jacob J., Ramachandran, Gautham, Champagne, Victor K.
Format: Artikel
Sprache:eng
Schlagworte:
High density infrared processing
Steel
Tantalum
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Zusammenfassung:The addition of tantalum to the inside diameter of a gun barrel would reduce erosion during firing of medium and large caliber guns. In this work, chemical vapor deposited (CVD) Ta was bonded to A723 Steel. High-density infrared (HDI) heating was employed to bond Ta to steel at 1440 ° C while maintaining bulk steel temperatures below the 357 ° C threshold for retaining beneficial compressive stresses (autofrettage). Through-thickness temperature evolution modeling was performed. Metallographic evaluation of claddings is reported. Characterization of the interface showed that metallurgical bonding occurred while keeping bulk temperatures low.
ISSN:1042-6914
1532-2475
DOI:10.1080/10426910600609361