Influences of adding Y2Ti2O7 and HfH1.98 nanoparticles on the microstructure and mechanical properties of oxide dispersion strengthen steels

被引：8
作者：
Cai, Yunfei [1 ]
Wang, Linbo [1 ]
Li, Jikang [1 ]
Yang, Mingsheng [1 ]
Feng, Qingshuai [1 ]
Liu, Tong [1 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Mat & Performance, Minist Educ, 37 Xueyuan Rd, Beijing 100191, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2023年 / 202卷
基金：
中国国家自然科学基金;
关键词：
ODS ferritic steel; Y2Ti2O7; nanoparticles; Hf hydride nanoparticles; Microstructure; Mechanical properties; TENSILE PROPERTIES; FERRITIC STEELS; TI HYDRIDE; CR; NUCLEATION; STABILITY; ALUMINUM; BEHAVIOR; Y2O3; AL;
D O I：
10.1016/j.matchar.2023.113040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Adding Y2O3 will make Al-containing oxide dispersion strengthened (ODS) steels produce coarse Y-Al-O particles, which deteriorates their mechanical properties. Herein, Y2Ti2O7 nanoparticles and Hf hydride nanoparticles (NPs) were successfully prepared by hydrogen plasma-metal reaction (HPMR) method and added together in the Fe-Cr-Al ODS steel to replace the traditional Y2O3 NPs. The microstructure of matrix and oxide in ODS steels has been characterized by scanning transmission electron microscopy (STEM) and high resolution transmission electron microscopy (HRTEM). The oxide NPs in FHYT-0.6 (Fe-14Cr-4.5Al-2 W-0.35HfH(1.98)-0.6Y(2)Ti(2)O(7), wt%) are made of Y2Ti2O7 (semi-coherent with the matrix and about 10 nm) and HfO2 (incoherent with the matrix and about 26 nm). The size of oxide dispersoid in FHYT-0.6 is reduced to 8.8 nm and the number density is greatly increased to 9.4 x 10(23) m(-3) compared with FTYT-0.6 (Fe-14Cr-4.5Al-2 W-0.35Ti-0.6Y(2)Ti(2)O(7), wt%) and FTY-0.6 (Fe-14Cr-4.5Al-2 W-0.35Ti-0.6Y(2)O(3), wt%). The tensile strength at room temperature of FHYT-0.6 is 1194 MPa, which is 24.1 and 14.1% higher than the FTY-0.6 and FTYT-0.6, respectively. Our work has proved that the mechanical properties of the alloy can be significantly improved by adding Y2Ti2O7 and HfH1.98 NPs, which provides a new idea for manufacturing high-performance ODS steels.
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页数：10
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共 56 条
[11]   Ab initio modelling of the Y, O, and Ti solute interaction in fcc-Fe matrix [J].
Gopejenko, A. ;
Mastrikov, Yu. A. ;
Zhukovskii, Yu. F. ;
Kotomin, E. A. ;
Vladimirov, P. V. ;
Moeslang, A. .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2018, 433 :106-110
[12]   Yield strength of nitrogen alloyed duplex steels: Experiments and micromechanical predictions [J].
Horvath, W ;
Hofer, H ;
Werner, E .
COMPUTATIONAL MATERIALS SCIENCE, 1997, 9 (1-2) :76-84
[13]   Structure of oxide nanoparticles in Fe-16Cr MA/ODS ferritic steel [J].
Hsiung, Luke L. ;
Fluss, Michael J. ;
Kimura, Akihiko .
MATERIALS LETTERS, 2010, 64 (16) :1782-1785
[14]   Influences of different hydride nanoparticles on microstructure and mechanical properties of 14Cr-3Al ferritic ODS steels [J].
Kang, Zhanbo ;
Shen, Hailong ;
Bai, Zhonglian ;
Zhao, Haozhi ;
Liu, Tong .
POWDER TECHNOLOGY, 2019, 343 :137-144
[15]   Low temperature synthesis of nanocrystalline Y2Ti2O7, Y2Zr2O7, Y2Hf2O7 with exceptional hardness by reverse co-precipitation technique [J].
Karthick, G. ;
Karati, Anirudha ;
Murty, B. S. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 837
[16]   Current Status and Future Prospective of Advanced Radiation Resistant Oxide Dispersion Strengthened Steel (ARROS) Development for Nuclear Reactor System Applications [J].
Kim, Tae Kyu ;
Noh, Sanghoon ;
Kang, Suk Hoon ;
Park, Jin Ju ;
Jin, Hyun Ju ;
Lee, Min Ku ;
Jang, Jinsugn ;
Rhee, Chang Kyu .
NUCLEAR ENGINEERING AND TECHNOLOGY, 2016, 48 (02) :572-594
[17]   Oxide dispersion-strengthened steels: A comparison of some commercial and experimental alloys [J].
Klueh, RL ;
Shingledecker, JP ;
Swindeman, RW ;
Hoelzer, DT .
JOURNAL OF NUCLEAR MATERIALS, 2005, 341 (2-3) :103-114
[18]   Microstructure and room temperature hardening of ultra-fine-grained oxide-dispersion strengthened copper prepared by cryomilling [J].
Kudashov, DV ;
Baum, H ;
Martin, U ;
Heilmaier, M ;
Oettel, H .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 :768-771
[19]   Microstructure evolution and mechanical properties of ODS FeCrAl alloys fabricated by an internal oxidation process [J].
Li, Jing ;
Wu, Sajian ;
Ma, Ping ;
Yang, Ying ;
Wu, Erdong ;
Xiong, Liangyin ;
Liu, Shi .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 757 :42-51
[20]   High-Temperature Oxidation Properties and Microstructural Evolution of Nanostructure Fe-Cr-Al ODS Alloys [J].
Li, Zhengyuan ;
Chen, Lijia ;
Zhang, Haoyu ;
Liu, Siyu .
MATERIALS, 2021, 14 (03) :1-10
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