Rapid solidification processing of iron-base alloys for structural applications

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The response of iron-base alloys to rapid solidification is reviewed with an emphasis on the effects of processing on the microstructure and mechanical property behavior. The processing topics addressed are powder atomization, powder consolidation, joining, and thermal-mechanical exposure. The value of rapid solidification processing (RSP) lies in the ability to promote compositional homogeneity and retention of fine and stable (to high temperatures) microstructures. Achieving the maximum benefit from RSP requires proper application of the basic principles of composition control and rapid crystallization. This investigation has disclosed two very important facets of the RSP approach that can be applied using current ... continued below

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Pages: (163 p)

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Flinn, J.E. September 1, 1991.

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  • EG & G Idaho
    Publisher Info: EG and G Idaho, Inc., Idaho Falls, ID (United States)
    Place of Publication: Idaho Falls, Idaho

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Description

The response of iron-base alloys to rapid solidification is reviewed with an emphasis on the effects of processing on the microstructure and mechanical property behavior. The processing topics addressed are powder atomization, powder consolidation, joining, and thermal-mechanical exposure. The value of rapid solidification processing (RSP) lies in the ability to promote compositional homogeneity and retention of fine and stable (to high temperatures) microstructures. Achieving the maximum benefit from RSP requires proper application of the basic principles of composition control and rapid crystallization. This investigation has disclosed two very important facets of the RSP approach that can be applied using current technologies. Dissociated oxygen appears to play a significant role in stabilizing microstructural features. In conjunction with oxygen, vacancies trapped during crystallization provide a very stable matrix dispersion for enhanced strengthening. With a fundamental understanding of the response of iron-base alloys to RSP, alloys can be designed that will have substantially better properties and performance than their conventionally processed counterparts. 77 refs., 94 figs., 14 tabs.

Physical Description

Pages: (163 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92003306
  • Report No.: EGG-MS-9617
  • Grant Number: AC07-76ID01570
  • DOI: 10.2172/6199198 | External Link
  • Office of Scientific & Technical Information Report Number: 6199198
  • Archival Resource Key: ark:/67531/metadc1110760

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Office of Scientific & Technical Information Technical Reports

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  • September 1, 1991

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • June 1, 2018, 1:04 p.m.

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Flinn, J.E. Rapid solidification processing of iron-base alloys for structural applications, report, September 1, 1991; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc1110760/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.