Time-dependent crack growth behavior of a nitrogen strengthened Ni-Fe-Cr-Nb-N alloy 120

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Creep and creep crack growth behavior of alloy 120 (HR120{trademark}) were studied through the time-dependent fracture mechanics characterization at 871 C (1,600 F). The material was tested under tensile, creep and creep crack propagation conditions to develop an understanding of time-dependent behavior under variable stresses at elevated temperature. The resulting properties were also compared with those of alloy 333 (RA333{trademark}) and alloy (HR160(TM)) previously obtained using the same testing and data processing methods. Results show that at elevated temperature, alloy 120 and alloy 333 had little primary creep while alloy 160 demonstrated significant amount of primary creep. Comparison based on ... continued below

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10 p.

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Ren, W. & Swindeman, R. W. March 1998.

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Description

Creep and creep crack growth behavior of alloy 120 (HR120{trademark}) were studied through the time-dependent fracture mechanics characterization at 871 C (1,600 F). The material was tested under tensile, creep and creep crack propagation conditions to develop an understanding of time-dependent behavior under variable stresses at elevated temperature. The resulting properties were also compared with those of alloy 333 (RA333{trademark}) and alloy (HR160(TM)) previously obtained using the same testing and data processing methods. Results show that at elevated temperature, alloy 120 and alloy 333 had little primary creep while alloy 160 demonstrated significant amount of primary creep. Comparison based on creep energy consumption rate indicates that creep crack growth resistance of alloy 120 is greater than that of alloy 333, but a little less than that of alloy 160.

Physical Description

10 p.

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OSTI as DE98004946

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  • 1998 ASME/JSME joint pressure vessel and piping (PVP) conference, San Diego, CA (United States), 26-30 Jul 1998

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  • Other: DE98004946
  • Report No.: ORNL/CP--97405
  • Report No.: CONF-980708--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/654185 | External Link
  • Office of Scientific & Technical Information Report Number: 654185
  • Archival Resource Key: ark:/67531/metadc706228

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Office of Scientific & Technical Information Technical Reports

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  • March 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 22, 2016, 7:01 p.m.

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Ren, W. & Swindeman, R. W. Time-dependent crack growth behavior of a nitrogen strengthened Ni-Fe-Cr-Nb-N alloy 120, report, March 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc706228/: accessed May 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.