skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of defect characteristics on tensile deformation of an additively manufactured stainless steel: Evolutions of texture and intergranular strain

Journal Article · · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
 [1];  [1];  [1];  [2];  [3];  [3]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Y-12 National Security Complex, Oak Ridge, TN (United States)

The micromechanics of plastic deformation behavior of a selective laser melt processed austenitic stainless steel were studied by investigating the evolutions of texture and intergranular strain using in situ high-energy synchrotron x-ray diffraction (sXRD). The effects of defect characteristics on tensile behavior were studied using three different samples: a near full-density sample with elliptical closed voids and two samples with lack-of-fusion (LOF) defects tensile loaded either perpendicular or parallel to their major axes. The evolutions of pole figures and inverse pole figures show that the full-density specimen develops a strong (111)/(200) fiber texture along the loading direction. For both LOF specimens, the evolution of texture is qualitatively similar to the full-density counterpart, but the development of the fiber texture was much slower, indicating a limited plasticity at a given macroscopic strain. The intergranular strain evolution in the full-density specimen is similar to that of a wrought 316L stainless steel. Conversely, a significantly different intergranular strain development was observed in a LOF specimen, where tensile strain development was observed in both the axial and transverse directions. The influence of defect type, density, and orientation on the local stress states in the steel matrix and the evolutions of intergranular strains is discussed.

Research Organization:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357; NA0001942
OSTI ID:
1760628
Alternate ID(s):
OSTI ID: 1634266; OSTI ID: 1774494
Report Number(s):
NA0001943
Journal Information:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 791; ISSN 0921-5093
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (45)

Microstructural and micromechanical characterization of IN718 theta shaped specimens built with electron beam melting journal April 2016
Visualization by X-ray tomography of void growth and coalescence leading to fracture in model materials journal July 2008
Micromechanical behavior and texture evolution of duplex stainless steel studied by neutron diffraction and self-consistent modeling journal February 2008
Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel journal August 2019
Compression behavior of lattice structures produced by selective laser melting: X-ray tomography based experimental and finite element approaches journal October 2018
Damage evolution and failure mechanisms in additively manufactured stainless steel journal January 2016
Effect of laser power on defect, texture, and microstructure of a laser powder bed fusion processed 316L stainless steel journal February 2019
Self-consistent modelling of the plastic deformation of f.c.c. polycrystals and its implications for diffraction measurements of internal stresses journal May 1998
Texture analysis of a friction stir processed 6061-T6 aluminum alloy using neutron diffraction journal September 2006
Deformation behavior of additively manufactured GP1 stainless steel journal June 2017
Internal strain evolution during heating of Ti-6Al-4V/SCS-6 composite journal December 1999
A synchrotron X-ray diffraction study on the phase transformation kinetics and texture evolution of a TRIP steel subjected to torsional loading journal November 2012
In situ observation of texture evolution during α→β and β→α phase transformations in titanium alloys investigated by neutron diffraction journal October 2007
Linking microstructure and processing defects to mechanical properties of selectively laser melted AlSi10Mg alloy journal December 2018
Laser additive manufacturing of metallic components: materials, processes and mechanisms journal May 2012
Intergranular strain accumulation in a near-alpha titanium alloy during plastic deformation journal November 2002
Reorientation and stress relaxation due to twinning: Modeling and experimental characterization for Mg journal June 2008
Fracture toughness and tensile strength of 316L stainless steel cellular lattice structures manufactured using the selective laser melting technique journal July 2016
Microstructure and Fracture Behavior of 316L Austenitic Stainless Steel Produced by Selective Laser Melting journal August 2016
Effect of martensitic phase transformation on the hardening behavior and texture evolution in a 304L stainless steel under compression at liquid nitrogen temperature journal January 2014
Microstructure, texture and residual stress in a friction-stir-processed AZ31B magnesium alloy journal May 2008
Study of slip mechanisms in a magnesium alloy by neutron diffraction and modeling journal April 2003
Additively manufactured hierarchical stainless steels with high strength and ductility journal October 2017
Synchrotron X-ray study of bulk lattice strains in externally loaded Cu-Mo composites journal November 2000
Additive manufacturing of metals journal September 2016
In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy journal June 2009
Hot cracking mechanism affecting a non-weldable Ni-based superalloy produced by selective electron Beam Melting journal January 2018
Plastic anisotropy and deformation-induced phase transformation of additive manufactured stainless steel journal August 2019
The effect of density and feature size on mechanical properties of isostructural metallic foams produced by additive manufacturing journal February 2015
Computed tomography for characterization of fatigue performance of selective laser melted parts journal October 2015
Mechanism of porosity formation and influence on mechanical properties in selective laser melting of Ti-6Al-4V parts journal October 2018
Lattice strain evolution during uniaxial tensile loading of stainless steel journal January 1999
Graded microstructure and mechanical properties of additive manufactured Ti–6Al–4V via electron beam melting journal September 2015
Texture variation and its influence on the tensile behavior of a friction-stir processed magnesium alloy journal June 2006
Quantification of the interaction within defect populations on fatigue behavior in an aluminum alloy journal July 2009
Mechanical behavior of additive manufactured, powder-bed laser-fused materials journal January 2016
Relationships Between the Phase Transformation Kinetics, Texture Evolution, and Microstructure Development in a 304L Stainless Steel Under Biaxial Loading Conditions: Synchrotron X-ray and Electron Backscatter Diffraction Studies journal February 2015
Rietveld texture analysis from diffraction images journal November 2007
Stress–strain relationship between ferrite and martensite in a dual-phase steel studied by in situ neutron diffraction and crystal plasticity theories journal December 2012
Metal Additive Manufacturing: A Review journal April 2014
Effect of triaxiality on void growth and coalescence in model materials investigated by X-ray tomography journal April 2012
On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance journal March 2013
Transformation-induced plasticity in an ultrafine-grained steel: An in situ neutron diffraction study journal March 2007
FIT2D : a multi-purpose data reduction, analysis and visualization program journal March 2016
Experimental investigation of void coalescence in metallic sheets containing laser drilled holes journal May 2008