| Isothermal precision forging of Ti-6.5Al-3.5Mo- 1.5Zr-0.3 Si alloy impeller with twisted blades |
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| 作者姓名： | 单德彬 史科 徐文臣 吕炎 |
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| 作者单位： | School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| 摘 要： | Ti-6.5Al-3.5Mo-1.5Zr-0.3Si （TC11） alloy impeller is an important part in the airspace engine that serves under severe working conditions, and it requires excellent mechanical properties and high dimensional precision. However, the integral titanium alloy impeller is difficult to precisely forge because of its complex shape and poor formability. In order to develop optimum forging process of this kind of complex parts, the deformation characteristics of TC 11 alloy under isothermal compressing conditions were studied. Furthermore, an alternative material, namely pure lead, was selected to model the forming process of the impeller and investigate metal flow during forging. Based on the research, local loading method was determined to forge the TC 11 alloy impeller precisely under isothermal condition. The dimensional accuracy, mechanical properties and microscopic structure of the forged product satisfy operating requirements.
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| 关 键 词： | 钛合金 等温 精密度 金属锻造 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Isothermal precision forging of Ti-6.5Al-3.5Mo- 1.5Zr-0.3 Si alloy impeller with twisted blades |
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| SHAN De-bin, SHI Ke, XU Wen-chen, LV Yan.Isothermal precision forging of Ti-6.5Al-3.5Mo- 1.5Zr-0.3 Si alloy impeller with twisted blades[J].Transactions of Nonferrous Metals Society of China,2006,16(A03):2086-2090. |
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| Authors: | SHAN De-bin SHI Ke XU Wen-chen LV Yan |
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| Abstract: | |
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| Keywords: | titanium alloy impeller isothermal forging deformation behavior physical modeling |
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