High temperature tensile deformation of a directionally solidified nickel base superalloy: Role of micro constituents

R.K. Rai; J.K. Sahu; P.S.M. Jena; S.K. Das; N. Paulose; CD. Fernando

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High temperature tensile deformation of a directionally solidified nickel base superalloy: Role of micro constituents

机译：定向凝固镍基高温合金的高温拉伸变形：微观成分的作用

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High temperature tensile deformation behaviour of directionally solidified nickel base superalloy CM 247 DS was studied by conducting tensile tests in the temperature range 25-955 ℃ and extensive electron microscopic examinations to understand the influence of different phases on tensile behaviour. Micro-constituents, especially carbides and γ-γ' eutectics influence the deformation and fracture behaviour of alloy CM 247 DS. Cracking of carbide precipitates was extensively observed during tensile deformation at 25 ℃. However, tendency of carbide cracking decreased and more carbide-matrix interface de-bonding were observed with increase in test temperature.

机译：通过在25-955℃的温度范围内进行拉伸试验和广泛的电子显微镜检查，研究了定向凝固的镍基高温合金CM 247 DS的高温拉伸变形行为，以了解不同相对拉伸行为的影响。微成分，尤其是碳化物和γ-γ'共晶会影响CM 247 DS合金的变形和断裂行为。在25℃拉伸变形期间观察到碳化物沉淀的开裂。然而，随着测试温度的升高，碳化物开裂的趋势减小，并且观察到更多的碳化物-基体界面剥离。

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来源
《Materials Science and Engineering》 |2017年第29期|189-195|共7页
作者
R.K. Rai; J.K. Sahu; P.S.M. Jena; S.K. Das; N. Paulose; CD. Fernando;
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作者单位

AcSIR, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India;

CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India;

CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India;

CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India;

Gas Turbine Research Establishment, Bangalore 560093, India;

Gas Turbine Research Establishment, Bangalore 560093, India;

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正文语种 eng
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关键词
Carbides; Tensile; γ' precipitate; γ-γ' eutectic;

机译：硬质合金拉伸γ'沉淀;γ-γ'共晶;

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专利

1. Micromechanism of High-Temperature Tensile Deformation Behavior of a Directionally Solidified Nickel Base Superalloy [J] . Rai R. K., Sahu J. K., Jena P. S. M., Journal of Materials Engineering and Performance . 2018,第2期

机译：定向凝固镍基超合金高温拉伸变形行为的微观机制
2. Deformation mechanism for high temperature creep of a directionally solidified nickel-base superalloy [J] . C. Yuan, J. T. Guo, H. C. Yang, Scripta materialia . 1998,第7期

机译：定向凝固镍基高温合金高温蠕变的变形机理
3. Influence of solution temperature on microstructure and creep property of a directional solidified nickel-based superalloy at intermediate temperatures [J] . Tian Sugui, Tian Ning, Yu Huichen, Materials Science and Engineering . 2014,第octa6期

机译：固溶温度对定向凝固镍基高温合金组织和蠕变性能的影响
4. Microstructure change during creep deformation of directionally solidified nickel base superalloy for power generation [C] . Akiyoshi Nomoto, Masatsugu Yagauchi, Takashi Ogata 高温強度シンポジウム . 1999

机译：动力发电定向凝固镍基超合金蠕变变形过程中的微观结构变化
5. The role of microstructure on deformation and damage mechanisms in a Nickel-based superalloy at elevated temperatures. [D] . Maciejewski, Kimberly E. 2013

机译：高温下镍基高温合金中微观结构对变形和破坏机制的作用。
6. Crystal-Plasticity-Finite-Element Modeling of the Quasi-Static and Dynamic Response of a Directionally Solidified Nickel-Base Superalloy [O] . Rafael Sancho, Javier Segurado, Borja Erice, 2020

机译：晶体塑性 - 有限元模拟定向凝固镍基超合金的准静态和动态响应
7. Tensile Properties of Directionally Solidified MarM247LCDS Ni-Base Superalloy in High Pressure Hydrogen at Room Temperature. [O] . Seiji FUKUYAMA, Kiyoshi YOKOGAWA, Tadashi IIDA 1994

机译：高压氢在室温下方向固化的MARM247LCDS高温合金的拉伸性能。
8. High Temperature Monotonic and Cyclic Deformation in a Directionally Solidified Nickel-Base Superalloy [R] . Huron, E. S. 1986

机译：定向凝固镍基高温合金的高温单调和循环变形

High temperature tensile deformation of a directionally solidified nickel base superalloy: Role of micro constituents

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