Mach 1 oxidation of thoriated nickel chromium at 1204⁰ C (2200⁰ F)

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086 0 ‡aNAS 1.14:D-6562
088 ‡aNASA-TN-D-6562
100 1 ‡aLowell, Carl E.
245 1 0 ‡aMach 1 oxidation of thoriated nickel chromium at 1204⁰ C (2200⁰ F) ‡cCarl E. Lowell and William A. Sanders.
246 3 ‡aNASA TN D-6562
260 ‡aWashington, D.C. : ‡bNational Aeronautics and Space Administration ; ‡a[For sale for Federal Scientific and Technical Information, Springfield, Virginia 22151], ‡c1971.
300 ‡a21 p. : ‡bill. ; ‡c27 cm.
490 0 ‡aNASA technical note ; ‡vD-6562
504 ‡aIncludes bibliographical references (p. 21).
520 ‡aTD NiCr was exposed to a Mach 1, 1-atmosphere gas stream at 1204 C for times up to 50 hours. Weight change, metal thickness loss, X-ray diffraction, metallographic, and electron microprobe analyses were made. Neither surface preparation nor thermal cycling had an appreciable effect on the results. Initially, Cr2O3 formed and volatilized, allowing a rapid metal loss rate of 40 microns per hour. After about 1 hour the Cr2O3 broke down, resulting in an NiO overgrowth. The metal loss rate then slowed to 2.5 microns per hour and remained constant to 50 hours.
538 ‡aMode of access: Internet.
650 0 ‡aProbes (Electronic instruments)
650 0 ‡aOxidation.
650 0 ‡aNickel-chromium alloys.
700 1 ‡aSanders, William A.
710 2 ‡aLewis Research Center.
710 1 ‡aUnited States. ‡bNational Aeronautics and Space Administration.
CID ‡a011446161
DAT 0 ‡a20101110151826.0 ‡b20141009010000.0
DAT 1 ‡a20141112165512.0 ‡b2016-10-08T18:49:41Z
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