Eutectic Precipitate Dissolution and Microstructure Evolution of Cr-W-Co Heat-Resistant Steel with Varying Ce Contents

被引：3
作者：
Zhao, Yu [1 ]
Wang, Hui [2 ]
Zhang, Huai [1 ]
Wang, Shizhou [1 ]
Shi, Chengbin [1 ]
机构：
[1] Univ Sci & Technol Beijing USTB, State Key Lab Adv Met, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing USTB, Inst Carbon Neutral, Beijing 100083, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2024年 / 55卷 / 05期
基金：
中国国家自然科学基金;
关键词：
MECHANICAL-PROPERTIES; THERMAL-EXPANSION; LAVES PHASE; KINETICS; SEGREGATION; BEHAVIOR; CREEP;
D O I：
10.1007/s11663-024-03232-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The evolution of the microstructure, the dissolution kinetics of (Fe,Cr)2W Laves phase and the microhardness of Cr-W-Co heat-resistant steel with different Ce concentrations during homogenization were investigated. The mechanism of the influence of Ce on the Cr-W-Co heat-resistant steel during homogenization process was clarified. The homogenization kinetic equation considering lattice parameters and specimen thickness correction was established. The activation energy for Laves phase dissolution in the steel with 0, 0.01 and 0.03 mass pct Ce is determined based on Johnson-Mehl-Avrami-Kolmogorov model to be 302.12, 293.26 and 278.43 kJ/mol, respectively. The activation energy for the dissolution of Laves phase decreases with increasing the Ce content, leading to an increase in the volume fraction of dissolved Laves phase in the steel with the increase in the Ce content from 0 to 0.03 mass pct after the soaking for 7 hours. The homogenization degree of alloying elements Cr, W, V and Nb increases with the Ce content in steel increases after homogenization treatment. The reduction in the standard deviation of microhardness of the steel after homogenization reflects a decrease in the microsegregation degree of alloying elements.
引用
收藏
页码：3975 / 3994
页数：20
相关论文
共 30 条
[1]   Feasibility of MARBN Steel for Application to Thick Section Boiler Components in USC Power Plant at 650 °C [J].
Abe, F. ;
Tabuchi, M. ;
Semba, H. ;
Igarashi, M. ;
Yoshizawa, M. ;
Komai, N. ;
Fujita, A. .
ADVANCES IN MATERIALS TECHNOLOGY FOR FOSSIL POWER PLANTS, 2008, :92-+
[2]  
Abstoss KG, 2016, ADVANCES IN MATERIALS TECHNOLOGY FOR FOSSIL POWER PLANTS: PROCEEDINGS FROM THE EIGHTH INTERNATIONAL CONFERENCE, 2016, P989
[3]   THERMAL EXPANSION OF RARE EARTH METALS [J].
BARSON, F ;
LEGVOLD, S ;
SPEDDING, FH .
PHYSICAL REVIEW, 1957, 105 (02) :418-424
[4]   Effect of rare earth element yttrium addition on microstructures and properties of a 21Cr-11Ni austenitic heat-resistant stainless steel [J].
Chen, Lei ;
Ma, Xiaocong ;
Wang, Longmei ;
Ye, Xiaoning .
MATERIALS & DESIGN, 2011, 32 (04) :2206-2212
[5]   Microsegregation of a new Ni-Co-based superalloy prepared by electron beam smelting layered solidification technology and its homogenization behavior [J].
Cui, Hongyang ;
Tan, Yi ;
Bai, Rusheng ;
Li, Yi ;
Zhuang, Xinpeng ;
Chen, Ziang ;
You, Xiaogang ;
Li, Pengting ;
Cui, Chuanyong .
MATERIALS CHARACTERIZATION, 2022, 184
[6]   Physical Properties of the NbC Carbide [J].
Di Vernieri Cuppari, Marcio Gustavo ;
Santos, Sydney Ferreira .
METALS, 2016, 6 (10)
[7]   Thermal expansion of chromium (Cr) to melting temperature [J].
Dubrovinskaia, NA ;
Dubrovinsky, LS ;
Saxena, SK ;
Sundman, B .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1997, 21 (04) :497-508
[8]   Structural changes of tempered martensitic 9%Cr-2%W-3%Co steel during creep at 650 °C [J].
Dudova, N. ;
Plotnikova, A. ;
Molodov, D. ;
Belyakov, A. ;
Kaibyshev, R. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 :632-639
[9]   Dissolution kinetics of Laves phase during homogenization heat treatment of additively manufactured Inconel 718 superalloy [J].
Ghaemifar, Sajad ;
Mirzadeh, Hamed .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 24 :3491-3501
[10]   Effect of Homogenisation Temperature on the Microstructure and Microhardness of As-Cast H13 Steel [J].
Han, Yahui ;
Li, Changsheng ;
He, Shuai ;
Gao, Cairu ;
Chen, Shuaishuai ;
Li, En .
METALS AND MATERIALS INTERNATIONAL, 2022, 28 (03) :755-769
123