| Local deformation and processing maps of Ti-24Al-17Nb-0.5Mo alloy |
| Y. Wang; B. Lu; R. Yang; X. D. Han; P. Ren
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| 2012
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| 发表期刊 | Acta Metallurgica Sinica-English Letters
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| ISSN | 1006-7191
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| 卷号 | 25期号:2页码:95-101 |
| 摘要 | The processing maps were used to identify the optimal forging parameters of Ti-24Al-17Nb-0.5Mo alloy by evaluating the flow data according to the DMM model. The actual local strain rate and strain distribution in the samples were obtained by finite element calculations. The local microstructures of the deformed samples were related to the local deformation parameters and correlated with the processing maps at 0.3, 0.4, 0.5 and 0.6 of logarithmic strain. Flow regimes predicted by DMM analysis were then correlated with the local microstructural observations. Five domains of efficient coefficient could be distinguished. Unstable regions were microstructurally related to shear band formation within the alpha(2)+B2 phase deformation field, and to flow localization at grain boundaries of B2 phase in the near B2 phase deformation field. Stable flow regimes were shown to be associated with dynamic globularization of the plate-like alpha(2) in the alpha(2)+B2 phase deformation zone, and with dynamic recrystallization of B2 in the near B2 phase deformation zone. |
| 部门归属 | [wang, yong; lu, bin; yang, rui] chinese acad sci, inst met res, shenyang 110016, peoples r china. [wang, yong] linyi acad technol cooperat & applicat, linyi 276001, peoples r china. [han, xiaodong; ren, ping] avic shenyang liming aeroengine grp corp ltd, shenyang 110043, peoples r china.;lu, b (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;blu@imr.ac.cn
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| 关键词 | Processing Map
Local Deformation
Ti-24al-17nb-0.5mo Alloy
Hot
Deformation
Plastic-flow
Hot-working
Microstructure
Ti-6al-4v
Aluminide
Behavior
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/60323
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
Y. Wang,B. Lu,R. Yang,et al. Local deformation and processing maps of Ti-24Al-17Nb-0.5Mo alloy[J]. Acta Metallurgica Sinica-English Letters,2012,25(2):95-101.
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| APA |
Y. Wang,B. Lu,R. Yang,X. D. Han,&P. Ren.(2012).Local deformation and processing maps of Ti-24Al-17Nb-0.5Mo alloy.Acta Metallurgica Sinica-English Letters,25(2),95-101.
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| MLA |
Y. Wang,et al."Local deformation and processing maps of Ti-24Al-17Nb-0.5Mo alloy".Acta Metallurgica Sinica-English Letters 25.2(2012):95-101.
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