Stressed Heat Affected Zone Simulations of AerMet 100 Alloy

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Description

AerMet 100 is a high strength, high fracture toughness alloy designed for use in aerospace applications. In previous work the welding behavior of this alloy has been evaluated, and it has been shown that a softened region in the heat-affected zone (HAZ) is a principal feature of the weld zone. A model for this softening, based on classical theories of precipitate coarsening and isothermal softening data, was developed and found to provide a reasonable description for weld thermal cycle simulation (Gleeble) experiments. Recent work has shown, however, that softening in real welds is not always well predicted by this model, ... continued below

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9 p.

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Puskar, Joseph D. & Smith, Mark F. August 3, 1999.

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This article 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. It has been viewed 51 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

AerMet 100 is a high strength, high fracture toughness alloy designed for use in aerospace applications. In previous work the welding behavior of this alloy has been evaluated, and it has been shown that a softened region in the heat-affected zone (HAZ) is a principal feature of the weld zone. A model for this softening, based on classical theories of precipitate coarsening and isothermal softening data, was developed and found to provide a reasonable description for weld thermal cycle simulation (Gleeble) experiments. Recent work has shown, however, that softening in real welds is not always well predicted by this model, so that additional effects, which are not captured in conventional Gleeble thermal cycle simulations must be addressed. In particular, the stresses associated with real weld HAZ's may modify the softening kinetics. In the current work, Gleeble simulations in both stress-free and stressed conditions have been conducted and the kinetics compared. The accuracy of the thermal model predictions have also been considered regarding their impact on estimated hardness values.

Physical Description

9 p.

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OSTI as DE00009688

Medium: P; Size: 9 pages

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  • Student Intern Symposium and Career Fair, Albuquerque, NM (US), 08/05/1999

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  • Report No.: SAND99-2004C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 9688
  • Archival Resource Key: ark:/67531/metadc794802

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  • August 3, 1999

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • April 11, 2017, 9:06 p.m.

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Puskar, Joseph D. & Smith, Mark F. Stressed Heat Affected Zone Simulations of AerMet 100 Alloy, article, August 3, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc794802/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.