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The effect of helium environment on the creep rupture properties of Inconel 617 at 1000°C

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Abstract

The effect of oxygen contents in helium and in vacuum on the creep rupture properties of Inconel 617 has been investigated at 1000°C under the stress of 3.5 Kg/mm2. The main results are as follows. 1) The creep rupture properties in 99.9999 pct and 99.995 pct helium and in high vacuum are almost the same as those in air. 2) The oxygen in helium causes a remarkable decrease of the creep rupture time and similar effect of oxygen is also found in the controlled pressure of air. 3) The effect of oxygen on the creep rupture properties is attributable to the decarburization which tends to decrease the high temperature strength.

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Authors and Affiliations

  1. Fundamental Research Laboratories, Nippon Steel Corp., 1618 Ida, Nakahara-ku, 211, Kawasaki, Japan

    Yuzo Hosoi (Chief Research Metallurgist) & Seizaburo Abe (Senior Research Metallurgist)

Authors
  1. Yuzo Hosoi
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  2. Seizaburo Abe
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Hosoi, Y., Abe, S. The effect of helium environment on the creep rupture properties of Inconel 617 at 1000°C. Metall Trans A 6, 1171–1178 (1975). https://doi.org/10.1007/BF02658525

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  • DOI: https://doi.org/10.1007/BF02658525

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