Biaxial creep of textured Zr-Nb alloys

Pratik Joshi; Micah Tillman; Nilesh Kumar; Mahmut Cinbiz; Korukonda Murty

Biaxial creep of textured Zr-Nb alloys

Pratik Joshi, Micah Tillman, Nilesh Kumar, Mahmut Cinbiz, Korukonda Murty

Radiation Effects and Microstructural An

Research output: Contribution to conference › Paper › peer-review

Abstract

The biaxial creep behavior of Nb-added zirconium base alloys—HANA-4 and ZIRLO^®—was investigated at 400 and 500°C, respectively. Biaxial creep tests were performed using internally pressurized tubing superimposed with axial load. Both axial and hoop strains were monitored using a linear variable linear variable displacement transducer (LVDT) and a laser telemetric extensometer, respectively. The creep data are analyzed to derive the anisotropy parameters and construct thermal creep loci at a given energy dissipation. The creep locus for HANA-4 was noted to be close to that predicted for isotropy and was found to be not largely affected by initial state. However, the creep locus and anisotropic parameters for cold-worked ZIRLO^® showed deviation from isotropy, exhibiting higher hoop deformation compared to axial strain.

Original language	English
Pages	240-244
Number of pages	5
State	Published - 2019
Event	19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors, EnvDeg 2019 - Boston, United States Duration: Aug 18 2019 → Aug 22 2019

Conference

Conference	19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors, EnvDeg 2019
Country/Territory	United States
City	Boston
Period	08/18/19 → 08/22/19

Funding

This work is supported by the National Science Foundation grant #CMMI1727237, and we thank Andy Nelson of Oak Ridge National Laboratory for his interest.

Funders	Funder number
National Science Foundation	#CMMI1727237

Cite this

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title = "Biaxial creep of textured Zr-Nb alloys",

abstract = "The biaxial creep behavior of Nb-added zirconium base alloys—HANA-4 and ZIRLO{\textregistered}—was investigated at 400 and 500°C, respectively. Biaxial creep tests were performed using internally pressurized tubing superimposed with axial load. Both axial and hoop strains were monitored using a linear variable linear variable displacement transducer (LVDT) and a laser telemetric extensometer, respectively. The creep data are analyzed to derive the anisotropy parameters and construct thermal creep loci at a given energy dissipation. The creep locus for HANA-4 was noted to be close to that predicted for isotropy and was found to be not largely affected by initial state. However, the creep locus and anisotropic parameters for cold-worked ZIRLO{\textregistered} showed deviation from isotropy, exhibiting higher hoop deformation compared to axial strain.",

author = "Pratik Joshi and Micah Tillman and Nilesh Kumar and Mahmut Cinbiz and Korukonda Murty",

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T1 - Biaxial creep of textured Zr-Nb alloys

AU - Joshi, Pratik

AU - Tillman, Micah

AU - Kumar, Nilesh

AU - Cinbiz, Mahmut

AU - Murty, Korukonda

PY - 2019

Y1 - 2019

N2 - The biaxial creep behavior of Nb-added zirconium base alloys—HANA-4 and ZIRLO®—was investigated at 400 and 500°C, respectively. Biaxial creep tests were performed using internally pressurized tubing superimposed with axial load. Both axial and hoop strains were monitored using a linear variable linear variable displacement transducer (LVDT) and a laser telemetric extensometer, respectively. The creep data are analyzed to derive the anisotropy parameters and construct thermal creep loci at a given energy dissipation. The creep locus for HANA-4 was noted to be close to that predicted for isotropy and was found to be not largely affected by initial state. However, the creep locus and anisotropic parameters for cold-worked ZIRLO® showed deviation from isotropy, exhibiting higher hoop deformation compared to axial strain.

AB - The biaxial creep behavior of Nb-added zirconium base alloys—HANA-4 and ZIRLO®—was investigated at 400 and 500°C, respectively. Biaxial creep tests were performed using internally pressurized tubing superimposed with axial load. Both axial and hoop strains were monitored using a linear variable linear variable displacement transducer (LVDT) and a laser telemetric extensometer, respectively. The creep data are analyzed to derive the anisotropy parameters and construct thermal creep loci at a given energy dissipation. The creep locus for HANA-4 was noted to be close to that predicted for isotropy and was found to be not largely affected by initial state. However, the creep locus and anisotropic parameters for cold-worked ZIRLO® showed deviation from isotropy, exhibiting higher hoop deformation compared to axial strain.

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M3 - Paper

AN - SCOPUS:85080064296

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T2 - 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors, EnvDeg 2019

Y2 - 18 August 2019 through 22 August 2019

ER -

Biaxial creep of textured Zr-Nb alloys

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