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

Title: High-energy synchrotron x-ray study of deformation-induced martensitic transformation in a neutron-irradiated Type 316 stainless steel

Journal Article · · Acta Materialia
 [1];  [2];  [1];  [1];  [3];  [3];  [3];  [4];  [5];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Beijing Normal Univ. (China)
  3. Argonne National Lab. (ANL), Lemont, IL (United States). Advanced Photon Source (APS)
  4. Boise State Univ., ID (United States); Center for Advanced Energy Studies, Idaho Falls, ID (United States); Idaho National Lab. (INL), Idaho Falls, ID (United States)
  5. Boise State Univ., ID (United States); Center for Advanced Energy Studies, Idaho Falls, ID (United States)

An unusual tensile deformation behaviour in the form of a propagating band along the sample gauge was observed in two neutron-irradiated 316 stainless steel samples during room-temperature tests, leading to a combination of high strength and high ductility. These bands were not observed in an unirradiated counterpart. With the help of in situ high-energy synchrotron x-ray diffraction, the phase-specific crystal information was tracked at different deformation levels in each sample. Post-irradiation and post-deformation samples were examined using electron microscopy to characterize various microstructural features. All samples displayed a deformation-induced martensitic phase transformation, which was identified as a second strain-hardening mechanism accompanying the dislocation hardening. The deformation-induced martensitic transformation was rationalized by the effect of applied stress on the effective martensite start temperature. The results showed that the irradiation did not alter the dislocation hardening and the martensitic transformation mechanisms, but the increased yield strength in irradiated materials facilitated the localized phase transformation at the onset of plastic deformation, in contrast to the unirradiated material which required pre-straining. The hardening effect of the martensitic transformation reduced the tendency towards necking and mitigated the loss of ductility in the irradiated material by carrying the deformation in the form of a propagating band. Despite the beneficial effect from the martensitic transformation, this study indicates that this mechanism cannot not be activated at typical operating temperatures of nuclear reactors.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy - Nuclear Energy Enabling Technologies (NEET); USDOE Office of Nuclear Energy; USDOE
Grant/Contract Number:
AC02-06CH11357; AC07-051D14517
OSTI ID:
1669111
Alternate ID(s):
OSTI ID: 1780205
Journal Information:
Acta Materialia, Vol. 200; ISSN 1359-6454
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (36)

Plastic instability in polycrystalline metals after low temperature irradiation journal April 2004
Irradiation performance of stainless steels for ITER application journal December 1996
Effects of low temperature neutron irradiation on deformation behavior of austenitic stainless steels journal October 1996
Tensile properties and deformation microstructure of highly neutron-irradiated 316 stainless steels at low and fast strain rate journal September 2018
Strengthening via the formation of strain-induced martensite in stainless steels journal December 2004
In situ synchrotron tensile investigations on the phase responses within an oxide dispersion-strengthened (ODS) 304 steel journal February 2015
Experimental investigation on martensitic transformation and fracture morphologies of austenitic stainless steel journal November 2009
Crystallographic orientation dependence of ε martensite transformation during tensile deformation of polycrystalline 30% Mn austenitic steel journal August 2013
Analysis of structure and deformation behavior of AISI 316L tensile specimens from the second operational target module at the Spallation Neutron Source journal January 2016
Effect of martensitic phase transformation and deformation twinning on mechanical properties of Fe–Mn–Si–AI steels journal December 1998
Martensite formation, strain rate sensitivity, and deformation behavior of type 304 stainless steel sheet journal July 1989
Temperature dependence of strain hardening and plastic instability behaviors in austenitic stainless steels journal August 2004
Anomalously large deformation of 12Cr18Ni10Ti austenitic steel irradiated to 55dpa at 310°C in the BN-350 reactor journal April 2009
Peculiarities of plastic flow involving “deformation waves” observed during low-temperature tensile tests of highly irradiated 12Cr18Ni10Ti and 08Cr16Ni11Mo3 steels journal August 2010
Post-irradiation tensile properties of the first and second operational target modules at the Spallation Neutron Source journal July 2014
In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy journal March 2017
In situ synchrotron investigation of grain growth behavior of nano-grained UO 2 journal April 2017
High-energy x-ray diffraction microscopy study of deformation microstructures in neutron-irradiated polycrystalline Fe-9%Cr journal September 2018
In-situ high-energy X-ray characterization of neutron irradiated HT-UPS stainless steel under tensile deformation journal September 2018
i RadMat: A thermo-mechanical testing system for in situ high-energy X-ray characterization of radioactive specimens journal January 2017
X-ray line broadening from filed aluminium and wolfram journal January 1953
The effect of dislocation contrast on x‐ray line broadening: A new approach to line profile analysis journal November 1996
Dislocation evolution during tensile deformation in ferritic–martensitic steels revealed by high-energy X-rays journal September 2014
Stepwise transformation behavior of the strain-induced martensitic transformation in a metastable stainless steel journal February 2007
The significance of texture parameters in phase analysis by X-ray diffraction journal October 1969
Effects of neutron irradiation and post-irradiation annealing on the microstructure of HT-UPS stainless steel journal August 2018
Self-consistent modelling of the plastic deformation of f.c.c. polycrystals and its implications for diffraction measurements of internal stresses journal May 1998
The evolution of mechanical property change in irradiated austenitic stainless steels journal November 1993
Formulating the strength factor α for improved predictability of radiation hardening journal October 2015
Mechanical behavior of AISI 304SS determined by miniature test methods after neutron irradiation to 28dpa journal May 2014
Grain orientation dependence of nanoindentation and deformation-induced martensitic phase transformation in neutron irradiated AISI 304L stainless steel journal March 2019
Criterion for the action of applied stress in the martensitic transformation journal September 1953
Deformation induced martensite in AISI 316 stainless steel [Deformation induced martensite in AISI 316 stainless steel] journal April 2010
Influence of plastic strain on deformation-induced martensitic transformations journal June 2008
Elastic and Plastic Properties of Very Small Metal Specimens journal March 1952
Cleavage fracture in bainitic and martensitic microstructures journal September 1999

Similar Records

Evolution of microstructure and strength of a high entropy alloy undergoing the strain-induced martensitic transformation
Journal Article · Mon Oct 02 00:00:00 EDT 2023 · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing · OSTI ID:1669111

Deformation behavior in reactor pressure vessel steels as a clue to understanding irradiation hardening.
Conference · Mon Oct 25 00:00:00 EDT 1999 · OSTI ID:1669111

Deformation Microstructure of a Reduced-Activation Ferritic/Martensitic Steel Irradiated in HFIR
Journal Article · Mon Sep 15 00:00:00 EDT 2003 · Fusion Science and Technology · OSTI ID:1669111