Microstructural evolution and dynamic recrystallization of a nickel-based superalloy PM EP962NP during hot deformation at 1150 °C

被引：38

作者：

Sun, Bing ^{[1
,2
]}

Zhang, Tiebang ^{[1
,2
]}

Song, Lin ^{[1
]}

Zhang, Lei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Chongqing Innovat Ctr, Chongqing 401135, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2022年 / 18卷

关键词：

Nickel-based superalloys; Grain boundaries; Dynamic recrystallization; Microstructure stability; Gradient microstructures; NI-BASED SUPERALLOYS; MECHANICAL-PROPERTIES; BEHAVIOR; EBSD; FEATURES; CREEP; RATES; BORON; DISK;

D O I：

10.1016/j.jmrt.2022.03.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructural evolution and dynamic recrystallization mechanism of a nickel-based superalloy PM EP962NP during isothermal compression at 1150 degrees C under different strain rates and strains have been investigated. Results show that continuous dynamic recrystallization can be induced to occur when the strain exceeds 0.36. A processing window with high microstructure stability including the evolution of DRX, y grains and y' precipitates is determined to be hot compression at 1150 degrees C with the strain rate of 0.001 s-1and strains ranging from 0.69 to 1.20. In addition, due to the interaction between dissolution and precipitation, the y' precipitates exhibit inhomogeneous sizes with micron-scale blocky primary y' and nano-scale spherical secondary y'. Moreover, the abundant microstructural information related to the strain rates and strains can provide a reference for obtaining the gradient microstructures by thermo-mechanical processes. (c) 2022 The Author(s). Published by Elsevier B.V.

引用

页码：1436 / 1449

页数：14

共 67 条

[1] Dynamic and metadynamic recrystallization of Hastelloy X superalloy [J].

Aghaie-Khafri, M. ;

Golarzi, N. .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (10) :3717-3724

[2]

[Anonymous], 1979, ASTM SPEC TECH PUBL, DOI DOI 10.1520/STP36888S

[3]

Artamonov MA, 2019, PROCEDIA STRUCT INTE, V23, P257, DOI [10.1016/j.prostr.2020.01.096, DOI 10.1016/J.PROSTR.2020.01.096]

[4] The influence of post heat treatments on the evolution of microstructure and mechanical properties of EP741NP nickel alloy produced by laser powder bed fusion [J].

Baskov, F. A. ;

Sentyurina, Zh. A. ;

Kaplanskii, Yu. Yu. ;

Logachev, I. A. ;

Semerich, A. S. ;

Levashov, E. A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 817

[5]

Carneiro T., 2005, ACTA METALL SIN, V18, P468, DOI [10.1080/09644016.2012.724243, DOI 10.1080/09644016.2012.724243]

[6] Microstructural evolution of a nickel-based superalloy during hot deformation [J].

Chen, Xiao-Min ;

Lin, Y. C. ;

Chen, Ming-Song ;

Li, Hong-Bin ;

Wen, Dong-Xu ;

Zhang, Jin-Long ;

He, Min .

MATERIALS & DESIGN, 2015, 77 :41-49

[7] Compositional variations for small-scale gamma prime (γ′) precipitates formed at different cooling rates in an advanced Ni-based superalloy [J].

Chen, Y. Q. ;

Francis, E. ;

Robson, J. ;

Preuss, M. ;

Haigh, S. J. .

ACTA MATERIALIA, 2015, 85 :199-206

[8] Evolution of Microstructure and Texture During Hot Compression of a Ni-Fe-Cr Superalloy [J].

Coryell, S. P. ;

Findley, K. O. ;

Mataya, M. C. ;

Brown, E. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2012, 43A (02) :633-649

[9] Effect of cooling rate on microstructure and tensile properties of powder metallurgy Ni-based superalloy [J].

Ding, Han-hui ;

He, Guo-ai ;

Wang, Xin ;

Liu, Feng ;

Huang, Lan ;

Jiang, Liang .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2018, 28 (03) :451-460

[10] Hot deformation behavior of a heat-resistant alloy without γ′-phase [J].

Dong, Chen ;

Liu, Zheng-dong ;

Chen, Zheng-zong ;

Liu, Zhen ;

Zheng, Jia-zhuang ;

Wang, Xi-tao .

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2020, 27 (07) :820-833

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