DEVELOPMENT OF ODS HEAT EXCHANGER TUBING

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Description

Work continued on four major tasks of this project--increasing the circumferential strength of MA956 tubing, joining of the MA956 alloy, determining the bending limits of MA956 tubing, and determination of the high temperature corrosion limits of the MA956 alloy. With respect to increasing the circumferential strength of a MA956 tube, all of the extrusions plus decanning operations have been completed (total of 180 rods) for Task 2.1.1 (Extrusion Ratio = 20:1, 16:1, 10:1 and Extrusion Temperature = 1000, 1075, 1150, and 1200 C). Also, essentially all of the cold working operations have been completed (0, 10, 20, 30, 40%) with ... continued below

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14 pages

Creation Information

Mark A. Harper, Ph.D. January 1, 2002.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Description

Work continued on four major tasks of this project--increasing the circumferential strength of MA956 tubing, joining of the MA956 alloy, determining the bending limits of MA956 tubing, and determination of the high temperature corrosion limits of the MA956 alloy. With respect to increasing the circumferential strength of a MA956 tube, all of the extrusions plus decanning operations have been completed (total of 180 rods) for Task 2.1.1 (Extrusion Ratio = 20:1, 16:1, 10:1 and Extrusion Temperature = 1000, 1075, 1150, and 1200 C). Also, essentially all of the cold working operations have been completed (0, 10, 20, 30, 40%) with approximately 100 annealing treatments (1000, 1150, 1300 C) remaining. The sample microstructures produced by this processing continue to be analyzed. Creep testing to determine the ''stress threshold'' curves for this alloy continues. Regarding joining of the MA956 alloy, advances were made using transient liquid phase bonding. And finally, laboratory high temperature corrosion testing of the material continues (both fluid-side and fire-side) with fabrication of the field probes initiated.

Physical Description

14 pages

Notes

OSTI as DE00813636

Source

  • Other Information: PBD: 1 Jan 2002

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  • Report No.: NONE
  • Grant Number: FC26-00NT40970
  • DOI: 10.2172/813636 | External Link
  • Office of Scientific & Technical Information Report Number: 813636
  • Archival Resource Key: ark:/67531/metadc740815

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  • January 1, 2002

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • Jan. 4, 2017, 1:48 p.m.

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Mark A. Harper, Ph.D. DEVELOPMENT OF ODS HEAT EXCHANGER TUBING, report, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc740815/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.