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Effect of grain orientation on aluminum relocation at incipient melt conditions

Journal Article · · Mechanics of Materials
 [1];  [1];  [1];  [1];  [2];  [3];  [3]
  1. New Mexico Inst. of Mining and Technology, Socorro, NM (United States)
  2. New Mexico State Univ., Las Cruces, NM (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
+ Show Author Affiliations
Aluminum is commonly used for structural applications in the aerospace industry because of its high strength in relation to its weight. It is necessary to understand the mechanical response of aluminum structures at elevated temperatures such as those experienced in a fire. Additionally, aluminum alloys exhibit many complicated behaviors that require further research and understanding, such as aluminum combustion, oxide skin formation and creep behavior. This paper discusses the effect of grain orientation on aluminum deformation subjected to heating at incipient melt conditions. Experiments were conducted by applying a vertical compressive force to aluminum alloy 7075 block test specimens. Furthermore, compression testing was done on test specimens with the applied load on the long transverse and short transverse orientations. Our results showed that the grain orientation significantly influences aluminum’s strength and mode of failure.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1119779
Alternate ID(s):
OSTI ID: 1372502
Report Number(s):
SAND--2013-9767J; PII: S0167663615001015
Journal Information:
Mechanics of Materials, Journal Name: Mechanics of Materials Journal Issue: C Vol. 88; ISSN 0167-6636
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Creep rupture mechanisms in annealed and overheated 7075 Al under multiaxial stress states journal November 2000
Constitutive Model for Aluminum Alloys Exposed to Fire Conditions journal February 2008
Oxide skin strength on molten aluminum journal June 2006
Creep-based life prediction modelling of aluminium in fire journal February 2010
Gleeble Machine Determination of Creep law Parameters for Thermally Induced Deformations in Aluminium dc Casting journal January 2000
Creep rupture mechanisms in annealed and overheated 7075 Al under multiaxial stress states journal November 2000

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Related Subjects

36 MATERIALS SCIENCE
aluminum deformation
compressive strength
creep
oxide skin