NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS

Huang, E-Wen; Barabash, Rozaliya; Clausen, Bjorn; Wang, Yandong; Yang, Dr Ren; Li, Li; Choo, Hahn; Liaw, Peter K

Title: NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS

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Abstract

The plastic behavior of an annealed HASTELLOY C-22HS alloy, a face-centered cubic (FCC), nickel-based superalloy, was examined by in-situ neutron-diffraction measurements at room temperature. Both monotonic-tension and low-cycle-fatigue experiments were conducted. Monotonic-tension straining and cyclic-loading deformation were studied as a function of stress. The plastic behavior during deformation is discussed in light of the relationship between the stress and dislocation-density evolution. The calculated dislocation-density evolution within the alloy reflects the strain hardening and cyclic hardening/softening. Experimentally determined lattice strains are compared to verify the hardening mechanism at selected stress levels for tension and cyclic loadings. Combined with calculations of the dislocation densities, the neutron-diffraction experiments provide direct information about the strain and cyclic hardening of the alloy.

Authors:

Huang, E-Wen ^[1]; Barabash, Rozaliya ^[1]; Clausen, Bjorn ^[1]; Wang, Yandong ^[1]; Yang, Dr Ren ^[2]; Li, Li ^[1]; Choo, Hahn ^[1]; Liaw, Peter K ^[3]

ORNL
Argonne National Laboratory (ANL)
University of Tennessee, Knoxville (UTK)

Publication Date:: Mon Jan 01 00:00:00 EST 2007

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 931805

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Conference

Resource Relation:: Conference: Internation conference on Plasticity 2007, Anchorage, AK, USA, 20070602, 20070606

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ALLOYS; DEFORMATION; DISLOCATIONS; HARDENING; HASTELLOYS; NEUTRON DIFFRACTION; PLASTICITY; PLASTICS; STRAIN HARDENING; STRAINS; NICKEL BASE ALLOYS

Citation Formats


                    Huang, E-Wen, Barabash, Rozaliya, Clausen, Bjorn, Wang, Yandong, Yang, Dr Ren, Li, Li, Choo, Hahn, and Liaw, Peter K. NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS.  United States: N. p., 2007. 
        Web.

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                    Huang, E-Wen, Barabash, Rozaliya, Clausen, Bjorn, Wang, Yandong, Yang, Dr Ren, Li, Li, Choo, Hahn, & Liaw, Peter K. NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS.  United States.

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                    Huang, E-Wen, Barabash, Rozaliya, Clausen, Bjorn, Wang, Yandong, Yang, Dr Ren, Li, Li, Choo, Hahn, and Liaw, Peter K. 2007.  
        "NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS".  United States.

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@article{osti_931805,

  title        = {NEUTRON-DIFFRACTION STUDY ON PLASTIC BEHAVIOR OF A NICKEL-BASED ALLOY UNDER THE MONOTONIC-TENSION AND THE LOW-CYCLE-FATIGUE EXPERIMENTS},

  author       = {Huang, E-Wen and Barabash, Rozaliya and Clausen, Bjorn and Wang, Yandong and Yang, Dr Ren and Li, Li and Choo, Hahn and Liaw, Peter K},

  abstractNote = {The plastic behavior of an annealed HASTELLOY C-22HS alloy, a face-centered cubic (FCC), nickel-based superalloy, was examined by in-situ neutron-diffraction measurements at room temperature. Both monotonic-tension and low-cycle-fatigue experiments were conducted. Monotonic-tension straining and cyclic-loading deformation were studied as a function of stress. The plastic behavior during deformation is discussed in light of the relationship between the stress and dislocation-density evolution. The calculated dislocation-density evolution within the alloy reflects the strain hardening and cyclic hardening/softening. Experimentally determined lattice strains are compared to verify the hardening mechanism at selected stress levels for tension and cyclic loadings. Combined with calculations of the dislocation densities, the neutron-diffraction experiments provide direct information about the strain and cyclic hardening of the alloy.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/931805},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 2007},

  month        = {Mon Jan 01 00:00:00 EST 2007}

}

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