Effect of gadolinium addition on the corrosion, wear, and neutron absorbing behaviors of duplex stainless steel sheet / Baik Youl,Choi Yong,Moon Byung M.,Sohn Dong S.,Bogdanov S. G.,Pirogov A. N. // PHYSICS OF METALS AND METALLOGRAPHY. - 2015. - V. 116, l. 11. - P. 1135-1142.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

In order to develop the neutron absorbing and shield materials, a hot-rolled 0.02\%-Gd duplex stainless steel was prepared with 55 vol. \% of ferrite and 45 vol. \% of austenite. The sigma phase with an average grain size of 9-11 mu m in austenitic (gamma) grains tended to be elongated parallel to the rolling direction, with (100) poles concentrated towards the normal direction, and (110) poles located between the normal and radial directions (ND and RD, respectively). Most of the gadolinium existed as sub-micro-meter-sized Gd2O3 and GdCrO3 precipitates. The yield strength, ultimate tensile strength, elongation, and microhardness of the 0.02\%-Gd duplex stainless steel were 522.8 MPa, 700.2 MPa, 38.1\%, and 258.5-314.7 HV, respectively. The friction coefficient and wear resistance were 3.11 and 0.004 mg/kg/cycle, respectively. The corrosion potential and corrosion rate of the 0.02\%-Gd duplex stainless steel were-0.448 V (SHE) and 1.263 x 10(-3) A/cm(2) for 1M-HCl,-0.544 V (SHE) and 2.619 x 10(-3) A/cm(2) for 1M-NaCl,-0.299 V (SHE) and 1.469 x 10(-3) A/cm(2) for 1M-H2SO4, and-0.607 V (SHE) and 2.295 x 10(-3) A/cm(2) for synthetic water, respectively. The coefficient of neutron transmission for the 0.02\%-Gd duplex stainless steel sheet of 2 mm thickness at neutron beam wavelength of 0.48 nm was 0.6.

Author keywords:

Gd-duplex stainless steel; mechanical and corrosion properties; neutron adsorption BORON; GD

DOI:

10.1134/S0031918X15110137

Web of Science ID:

ISI:000365032700010

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	NOV
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	BORON; GD
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	yochoi@dankook.ac.kr
ResearcherID-Numbers	Bogdanov, Savva/K-1613-2013 Pirogov, Alexander/K-8115-2013
ORCID-Numbers	Bogdanov, Savva/0000-0003-2327-1180 Pirogov, Alexander/0000-0001-7321-1245
Funding-Acknowledgement	Nuclear Power Core Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) from the Ministry of Trade, Industry \& Energy, Republic of Korea {[}20131520000060]; project of DPS of RAS {[}12-T-2-1006]
Funding-Text	This work was supported by the Nuclear Power Core Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry \& Energy, Republic of Korea. (No. 20131520000060). The work was done at IVV-2M Neutron Material Science Complex within the State Task ``Potok{''} No. 01201463334 with partial support of the project of DPS of RAS No. 12-T-2-1006.
Number-of-Cited-References	16
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	9
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	CW5JW