"Annealing behavior in a high-pressure torsion-processed Fe–9Cr steel" Jiaqi Duan, Haiming Wen, Caizhi Zhou, Xiaoqing He, Rinat Islamgaliev, Ruslan Valiev, Journal of Materials Science Vol. 55 2020 6678-6695 Link | ||
"Discontinuous grain growth in an equal-channel angular pressing processed Fe-9Cr alloy with a heterogeneous microstructure" Jiaqi Duan, Haiming Wen, Caizhi Zhou, Xiaoqing He, Rinat Islamgaliev, Ruslan Valiev, Materials Characterization Vol. 159 2020 110004 Link | ||
"Distribution of fission products palladium, silver, cerium and cesium in the un-corroded areas of the locally corroded SiC layer of a neutron irradiated TRISO fuel particle" Haiming Wen, Isabella van Rooyen, Journal of the European Ceramic Society Vol. 37 (2017) 2017 3271-3284 Link | ||
"Effect of grain size on the irradiation response of Grade 91 steel subjected to Fe ion irradiation at 300 °C" Haiming Wen, Jiaqi Duan, Li He, Journal of Materials Science Vol. 57 2022 13767-13778 Link | ||
"Effects of Al and Ti Additions on Irradiation Behavior of FeMnNiCr Multi-Principal-Element Alloy"
Andrew Hoffman, Haiming Wen, Li He, Kumar Sridharan, Matthew Luebbe, Jiaqi Duan,
JOM
Vol. 72
2020
150-159
Two Co-free multi-principal-element alloys (MPEAs), viz. single-phase face-centered cubic (FCC) Fe30Ni30Mn30Cr10 and (Fe30Ni30Mn30Cr10)94Ti2Al4 (all in atomic percent) with FCC matrix containing Ni-Ti-Al enriched L12 (ordered FCC) secondary phase (γ′), have been developed and investigated. The alloys were ion irradiated at 300°C and 500°C to peak damage of 120 displacements per atom (dpa). Compared with the (Fe30Ni30Mn30Cr10)94Ti2Al4 alloy, in the Fe30Ni30Mn30Cr10 alloy, the dislocation loops were smaller, with a higher number density. The difference in loop size between the two MPEAs was attributed to the addition of Ti to the matrix, which was anticipated to lower the stacking fault energy and stabilize the faulted Frank loops. The γ′ phase showed good stability under irradiation, with no new γ′ precipitation or growth in existing precipitates. Both alloys showed similar irradiation-induced hardening at 300°C, but the (Fe30Ni30Mn30Cr10)94Ti2Al4 alloy exhibited lower irradiation-induced hardening at 500°C compared with the Fe30Ni30Mn30Cr10 alloy. |
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"Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91" Artur Ganeev, Marina Nikitina, Vil Sitdikov, Rinat Islamgaliev, Andrew Hoffman, Haiming Wen, Materials Vol. 11 2018 Link | ||
"Electron Microscopy Study of Pd, Ag, and Cs in Carbon Areas in the Locally Corroded SiC Layer in a Neutron-Irradiated TRISO Fuel Particle" Haiming Wen, Isabella van Rooyen, John Hunn, Tyler Gerczak, Journal of the European Ceramic Society Vol. 38 (2018) 2016 4173-4188 Link | ||
"Enhanced Resistance to Irradiation Induced Ferritic Transformation in Nanostructured Austenitic Steels"
Andrew Hoffman, Maalavan Arivu, Haiming Wen, Li He, Kumar Sridharan, Xin Wang, Xiang Liu, Lingfeng He, Yaqiao Wu,
Materialia
Vol. 13
2020
Link
Irradiation induced phase transformation of γ-austenite to α-ferrite has been observed in austenitic steels for the past several decades. This transformation can be detrimental to structural materials in a nuclear reactor environment as the increased fraction of the ferritic phase can increase corrosion and embrittlement and lead to stress corrosion cracking. This transformation is caused by both strain induced martensite transformation as well as radiation induced segregation and precipitation. In this study, two radiation tolerant nanostructured 304L austenitic steels (one ultrafine grained and one nanocrystalline) were manufactured using severe plastic deformation. These nanostructured 304L steels were compared to conventional coarse-grained 304L, after self-ion irradiation at 500°C up to a peak damage of 50 displacements per atom. Phase fraction after irradiation was analyzed using grazing incidence x-ray diffraction, precession electron diffraction, and electron backscatter diffraction. Nanostructured 304L steels showed significant resistance to irradiation induced austenite to ferrite transformation. This resistance was shown to be due to a decrease in defect formation, as well as a reduction in radiation induced segregation and precipitation. |
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"Evolution of microstructure and texture during annealing in a high-pressure torsion processed Fe-9Cr alloy" Haiming Wen, Jiaqi Duan, Caizhi Zhou, Rinat Islamgaliev, Ruslan Valiev, Materialia Vol. 6 2019 100349 Link | ||
"High-pressure Torsion Assisted Segregation and Precipitation in a Fe-18Cr-8Ni Austenitic Stainless Steel" Andrew Hoffman, Haiming Wen, Rinat Islamgaliev, Ruslan Valiev, Materials Letters Vol. 243 2019 116-119 Link | ||
"Microstructure, strength and irradiation response of an ultra-fine grained FeNiCoCr multi-principal element alloy" Haiming Wen, Journal of Alloys and Compounds Vol. 851 2021 156796 Link | ||
"Novel effects of grain size and ion implantation on grain boundary segregation in ion irradiated austenitic steel" Haiming Wen, Acta Materialia Vol. 246 2023 Link | ||
"Severe plastic deformation assisted carbide precipitation in Fe-21Cr-5Al alloy" Maalavan Arivu, Andrew Hoffman, Jiaqi Duan, Haiming Wen, Rinat Islamgaliev, Ruslan Valiev, Materials Letters Vol. 253 2019 78-81 Link |
"Effects of severe plastic deformation and irradiation on precipitation in ultrafine-grained steels studied using atom-probe tomography" Andrew Hoffman, Haiming Wen, 2019 TMS Annual Meeting March 10-14, (2019) | |
"Effects of Ti and Al Additions on Irradiation Behavior of FeMnNiCr Based High Entropy Alloys" Andrew Hoffman, Haiming Wen, Li He, Kumar Sridharan, 2019 TMS Annual Meeting March 10-14, (2019) | |
"Effects of Ti and Al Additions on Irradiation Behavior of FeMnNiCr Based High-Entropy Alloys" Matthew Luebbe, Andrew Hoffman, Hans Pommeranke, Li He, Kumar Sridharan, Haiming Wen, Materials Science & Technology 2019 September 29-3, (2019) | |
"Enhanced Austenite Stability in Nanostructured Steels During Ion Irradiation" Andrew Hoffman, Haiming Wen, Maalavan Arivu, 2020 TMS Annual Meeting February 23-27, (2020) | |
"Micro/Nano Structural Examination and Fission Product Identification in Neutron Irradiated AGR-1 TRISO Fuel" Terry Holesinger, Haiming Wen, 2016 International Topical Meeting on High Temperature Reactor Technology (HTR 2016) November 6-10, (2016) Link | |
"Microstructure evolution in irradiation-tolerant ultrafine-grained steels" Haiming Wen, Andrew Hoffman, Jiaqi Duan, 2019 TMS Annual Meeting March 10-14, (2019) | |
"The role of electron and atom probe tomography in characterization of nuclear fuels" Assel Aitkaliyeva, Cynthia Papesch, Yaqiao Wu, Haiming Wen, Nuclear Fuels and Structural Materials (NFSM-2016) June 12-16, (2016) |
U.S. DOE Nuclear Science User Facilities Awards 30 Rapid Turnaround Experiment Research Proposals - Awards total nearly $1.2 million The U.S. Department of Energy (DOE) Nuclear Science User Facilities (NSUF) has selected 30 new Rapid Turnaround Experiment (RTE) projects, totaling up to approximately $1.2 million. These projects will continue to advance the understanding of irradiation effects in nuclear fuels and materials in support of the mission of the DOE Office of Nuclear Energy. Wednesday, April 26, 2017 - Calls and Awards |
U.S. DOE Nuclear Science User Facilities Awards 35 Rapid Turnaround Experiment Research Proposals - Awards total approximately $1.3 million These projects will continue to advance the understanding of irradiation effects in nuclear fuels and materials in support of the mission of the DOE Office of Nuclear Energy. Wednesday, September 20, 2017 - Calls and Awards |
DOE Awards 33 Rapid Turnaround Experiment Research Proposals - Projects total approximately $1.5 million These projects will continue to advance the understanding of irradiation effects in nuclear fuels and materials in support of the mission of the DOE Office of Nuclear Energy. Monday, May 14, 2018 - Calls and Awards |
NSUF Researcher Feature: Haiming Wen - Monday, July 20, 2020 - Researcher Highlight |
NSUF awards 30 Rapid Turnaround Experiment proposals - Approximately $1.53M has been awarded. Tuesday, June 14, 2022 - Calls and Awards |
NSUF awards 22 Rapid Turnaround Experiment proposals - Thursday, September 14, 2023 - Calls and Awards |
This NSUF Profile is 75
Authored 10+ NSUF-supported publications
Presented an NSUF-supported publication
Top 5% of all RTE Proposal submissions
Top 5% of all RTE Proposals awarded
Collaborated on 3+ RTE Proposals
Reviewed 10+ RTE Proposals
Atom Probe Tomography Study of Neutron Irradiated U-Mo Fuel - FY 2017 RTE 2nd Call, #952
Enhanced irradiation tolerance of high-entropy alloys - FY 2017 RTE 3rd Call, #1122
Enhancing irradiation tolerance of steels via nanostructuring by innovative manufacturing techniques - FY 2016 CINR, #3038
Ion irradiation of advanced materials – nanostructured steels and high entropy alloysNew Proposal - FY 2017 RTE 1st Call, #865
Irradiation behavior of nanostructured ferritic/martensitic Grade 91 steel at high dose - FY 2022 RTE 1st Call, #4406
Nanostructuring to enhance irradiation tolerance of ferritic/martensitic Grade 91 steels - FY 2018 RTE 2nd Call, #1403
STEM/EELS Study of Fission Product Transport in Neutron Irradiated TRISO Fuel Particles - FY 2015 RTE 3rd Call, #581
Understanding the role of nanostructuring in enhancing phase stability of 304 austenitic steel during irradiation via in-situ ion irradiation in transmission electron microscope - FY 2023 RTE 3rd Call, #4756
Advanced Characterizations of Low-dose Neutron Irradiated T91 and HT9 Alloys - FY 2015 CINR, #1711
Advanced microstructural characterization of irradiation-induced phase transformation in 304 steel - FY 2019 RTE 3rd Call, #2858
Alleviating irradiation-induced precipitation in a Fe-21Cr-5Al alloy via nanostructuring. - FY 2019 RTE 2nd Call, #1761
APT Study of Fission Product Transport in Unirradiated/Neutron Irradiated TRISO Fuel Particles - FY 2015 RTE 1st Call, #541
Atom probe and transmission electron microscopy studies on neutron irradiated FeCrMnNi Compositionally Complex Alloy - FY 2022 RTE 1st Call, #4459
Atom Probe Tomography and Transmission Electron Microscopy of Neutron-Irradiated Nanocrystalline Compositionally Complex Alloys - FY 2023 RTE 3rd Call, #4768
Correlative Transmission Electron Microscopy and Atom Probe Tomography Study of Radiation Induced Segregation and Precipitation in Nanostructured SS304 - FY 2019 RTE 3rd Call, #2880
High-Resolution Characterization of Neutron-Irradiated Cr-Fe-Mn-Ni-(Al,Ti) High-Entropy Alloys - FY 2023 RTE 1st Call, #4521
The Nuclear Science User Facilities (NSUF) is the U.S. Department of Energy Office of Nuclear Energy's only designated nuclear energy user facility. Through peer-reviewed proposal processes, the NSUF provides researchers access to neutron, ion, and gamma irradiations, post-irradiation examination and beamline capabilities at Idaho National Laboratory and a diverse mix of university, national laboratory and industry partner institutions.
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