Effect of 15 MPa hydrogen on creep-rupture properties of iron-base superalloysSix wrought alloys (A-286, Incoloy 800H, N-155, 19-9DL, 12RN72, and CG-27) and four cast alloys (XF-813, CRM-6D, HS-31, and SA-F11), candidate materials for use in Stirling engines, were evaluated with reference to creep-rupture characteristics in 15-MPa H2 at 705 and 925 C. An analysis of the test results indicates that hydrogen has no effect on the rupture life and the minimum creep rate of the alloys investigated. Rupture ductility in hydrogen is lower than in air, but the mode of fracture is not significantly affected.
Document ID
19870062284
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bhattacharyya, S. (Metallurgical and Engineering Consultants, Ltd. Ranchi, India)
Titran, R. H. (NASA Lewis Research Center Cleveland, OH, United States)