Hot Isostatic Pressing (HIP) Model Developments for P/M Alloy 690N{sub 2}

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Description

Powder Metallurgy (P/M) Alloy 690N{sub 2}, the P/M derivative of Inconel 690 (IN 690), has been shown to have a higher elevated temperature yield strength and superior stress corrosion cracking (SCC) resistance than IN 690. The property improvements seen in P/M Alloy 690N{sub 2} are due to interstitial nitrogen strengthening and precipitation hardening resulting from the formation of fine titanium/chromium--carbo-nitrides. The application of P/M Alloy 690N{sub 2} has had limited use, because of the high costs involved in producing wrought products from powder. Hot Isostatic Pressing (HIP) modeling to produce near net shapes should provide a more economical route for ... continued below

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3731 Kilobytes pages

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Sears, J.W. & Xu, J. August 30, 2001.

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Description

Powder Metallurgy (P/M) Alloy 690N{sub 2}, the P/M derivative of Inconel 690 (IN 690), has been shown to have a higher elevated temperature yield strength and superior stress corrosion cracking (SCC) resistance than IN 690. The property improvements seen in P/M Alloy 690N{sub 2} are due to interstitial nitrogen strengthening and precipitation hardening resulting from the formation of fine titanium/chromium--carbo-nitrides. The application of P/M Alloy 690N{sub 2} has had limited use, because of the high costs involved in producing wrought products from powder. Hot Isostatic Pressing (HIP) modeling to produce near net shapes should provide a more economical route for exploiting the benefits of Alloy 690N{sub 2}. The efforts involved in developing and verifying the P/M Alloy 690N{sub 2} HIP model are disclosed. Key to the deployment of HIP modeling is the development of the method to fabricate HIP powder containers via laser powder deposition.

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3731 Kilobytes pages

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OSTI as DE00821685

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  • Other Information: PBD: 30 Aug 2001

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  • Report No.: LM-01K081
  • Grant Number: AC12-00SN39357
  • DOI: 10.2172/821685 | External Link
  • Office of Scientific & Technical Information Report Number: 821685
  • Archival Resource Key: ark:/67531/metadc783063

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  • August 30, 2001

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  • Dec. 3, 2015, 9:30 a.m.

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  • March 29, 2016, 7:38 p.m.

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Sears, J.W. & Xu, J. Hot Isostatic Pressing (HIP) Model Developments for P/M Alloy 690N{sub 2}, report, August 30, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc783063/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.