| 喷丸强化对TC4钛合金组织结构的影响 |
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| 引用本文： | 高玉魁.喷丸强化对TC4钛合金组织结构的影响[J].稀有金属材料与工程,2010,39(9):1536-1539. |
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| 作者姓名： | 高玉魁 |
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| 作者单位： | 北京航空材料研究院,北京,100095 |
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| 基金项目： | 国家科学技术部国际合作项目(2007DFRS0240和08-039577):中国人民解放军总装备部武器装备先进制造技术"十一五"预研项目 |
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| 摘 要： | 对TC4钛合金试样进行喷丸强化，采用OM、SEM、TEM等技术对喷丸强化试样的组织结构进行观察分析。结合显微硬度沿表层的分布，分析喷丸强化变形层的组织结构特征和加工硬化机制。结果表明，喷丸强化后位错的运动和组态的变化使TC4钛合金表层的组织和亚结构细化，而且可以在表层强变形区形成孪晶，从而产生强烈的加工硬化效应。
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| 关 键 词： | 喷丸强化 TC4钛合金 组织结构 加工硬化 |
| 收稿时间： | 9/2/2009 12:00:00 AM |
Effect of Shot-Peening on Microstructure of TC4 Titanium Alloy |
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| Gao Yukui.Effect of Shot-Peening on Microstructure of TC4 Titanium Alloy[J].Rare Metal Materials and Engineering,2010,39(9):1536-1539. |
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| Authors: | Gao Yukui |
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| Affiliation: | Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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| Abstract: | Shot-peening was performed for TC4 titanium alloy sample and then its microstructure was analyzed by OM, SEM and TEM. The microhardness distribution along surface layer was determined and based on the results the microstructure characteristics in shot- peened layer and the mechanism of work hardening were analyzed. The results show that after shot-peening, dislocation movement and configuration change refine the microstructure and substructure of TC4 alloy surface layer, and twins are formed in the deformed area of the surface layer, resulting in significant work hardening effect. |
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| Keywords: | shot-peening TC4 titanium alloy microstructure work hardening |
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