Microstructure and Mechanical Properties of 14Cr-ODS Steels with Zr Addition-Reference-Cited by-同舟云学术

Microstructure and Mechanical Properties of 14Cr-ODS Steels with Zr Addition

Published:2018-12-15 Issue:2019 Volume:38 Page:404-410
ISSN:2191-0324
Container-title:High Temperature Materials and Processes
language:en
Short-container-title:

Author:

Li Weijuan¹,Xu Haijian¹²³⁴,Sha Xiaochun³,Meng Jingsong³,Wang Zhaodong⁵

Affiliation:

1. School of Materials and Metallurgy , University of Science and Technology Liaoning , Anshan 114051 , P.R. China

2. State Key Laboratory of Metal Material for Marine Equipment and Application, Ansteel Group Corporation , Anshan 114009 , P.R. China

3. Angang Steel Company Limited , Anshan , 114009 , P.R. China

4. Material Science and Engineering, Faculty of Engineering , Hokkaido University , Sapporo 060-8628 , Japan

5. School of Material Science and engineering , Northeastern University , Shenyang 110819 , P.R. China

Abstract

Abstract In this study, oxide dispersion strengthened (ODS) ferritic steels with nominal composition of Fe–14Cr–2W–0.35Y2O3 (14Cr non Zr-ODS) and Fe–14Cr–2W–0.3Zr–0.35Y2O3 (14Cr–Zr-ODS) were fabricated by mechanical alloying (MA) and hot isostatic pressing (HIP) technique to explore the impact of Zr addition on the microstructure and mechanical properties of 14Cr-ODS steels. Microstructure characterization revealed that Zr addition led to the formation of finer oxides, which was identified as Y4Zr3O12, with denser dispersion in the matrix. The ultimate tensile strength (UTS) of the non Zr-ODS steel is about 1201 MPa, but UTS of the Zr-ODS steel increases to1372 MPa, indicating the enhancement of mechanical properties by Zr addition.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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