Development of Constitutive Equation and Processing Maps for IN706 Alloy
查看参考文献33篇
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文摘
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The hot deformation behavior of IN706 has been investigated by means of hot compression tests in the temperature range of 900–1150 °C and strain rate range of 0.001–1 s~(-1). The constitutive equation was developed on the basis of experimental data. Power dissipation efficiency (η) and instability parameter (ξ) maps were evaluated using the principles of the dynamic material model. Furthermore, the EBSD microstructure analysis was performed for validation, revealing that η was closely associated with the mechanism of dynamic recrystallization (DRX). Microstructure transition map was composed of contour plots of η, ξ, and DRX. The DRX domain zones and instable zones were identified in the processing map and were classified based on η. In a view of microstructure refinement and workability improvement, the optimum processing should be selected in the temperature range of 970–1025 °C and the strain rate range of 0.08–0.01 s~(-1). |
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来源
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Acta Metallurgica Sinica(English Letters)
,2014,27(2):198-204 【核心库】
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DOI
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10.1007/s40195-014-0037-3
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关键词
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IN706 alloy
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Constitutive equation
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Power dissipation efficiency
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Flow instability
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Processing map
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地址
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1.
Key lab for Anisotropy and Texture of Materials, Northeastern University, Shenyang, 110819
2.
Department of High-temperature Materials, Central Iron and Steel Research Institute, Beijing, 100081
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1006-7191 |
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学科
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金属学与金属工艺 |
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基金
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国家863计划
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国家973计划
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the Common Technical Research Aircraft Key Component Forming
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文献收藏号
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CSCD:5142496
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