ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

Effect of Hydrogen on Iron-Nickel-Cobalt Sealing Alloys

Thompson, AW
Science Center, Rockwell International, Thousand Oaks, Calif.

Posey, WN
Savannah River Laboratory, E. I. du Pont de Nemours and Co., Aiken, S. C.

Abstract

Two commercial sealing alloys (Kovar® and Ceramvar® were tested in high pressure hydrogen, or after exposure to hydrogen gas for up to 17,500 h. All hydrogen pressures were 69 MPa. In no case was any ductility loss observed. It was therefore concluded that these alloys are probably safe for use in gas handling systems which contain hydrogen.

Keywords:
hydrogen embrittlement, hydrogen, iron alloys, nickel containing alloys, cobalt containing alloys, austenite, Kovar®, glass-to-metal seals, mechanical properties, fracture (materials), ductility

Paper ID: JTE10107J
DOI: 10.1520/JTE10107J
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