| SiO2在FGH96高温合金中的遗传特征 |
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| 引用本文： | 周晓明,汪武祥,唐定中,颜鸣皋.SiO2在FGH96高温合金中的遗传特征[J].材料工程,2006(11):53-56,61. |
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| 作者姓名： | 周晓明 汪武祥 唐定中 颜鸣皋 |
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| 作者单位： | 北京航空材料研究院,先进高温结构材料国防科技重点实验室,北京,100095 |
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| 摘 要： | 研究了SiO2颗粒在FGH96高温合金各不同工艺状态中的行为特征,结果表明:经热等静压处理后,SiO2尖角分明的特征消失,在界面处有反应过渡区生成,变成了一种"复合"非金属夹杂物.反应的驱动力为粉末和SiO2颗粒的表面能及在热等静压过程中球形粉末变形产生的应变能.在随后的各工艺状态中,SiO2在形貌、尺寸和元素分布等方面表现出了一定的行为特征.
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| 关 键 词： | 粉末高温合金 非金属夹杂物 遗传特征 |
| 文章编号： | 1001-4381（2006）11-0053-04 |
| 收稿时间： | 2005-06-21 |
| 修稿时间： | 2005-06-212006-01-20 |
Genetic Characteristic of SiO2 in FGH96 Superalloy |
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| ZHOU Xiao-ming,WANG Wu-xiang,TANG Ding-zhong,YAN Ming-gao.Genetic Characteristic of SiO2 in FGH96 Superalloy[J].Journal of Materials Engineering,2006(11):53-56,61. |
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| Authors: | ZHOU Xiao-ming WANG Wu-xiang TANG Ding-zhong YAN Ming-gao |
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| Affiliation: | National Key Laboratory for Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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| Abstract: | The different processing characteristic of SiO_2 particles in FGH96 superalloy was investigated.The results showed that the edge of SiO_2 particle tends to be smooth,and there was a reaction zone at the interface between SiO_2 particle and the matrix,which made SiO_2 particle become a "compound" non-metallic inclusion.The driving power used for the reaction was surface energy of powders and SiO_2 particles strain energy generated during HIP in powders.In the following processes,SiO_2 particles showed slight difference in characteristic of morphology,size and distribution of elements. |
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| Keywords: | P/M superalloy non-metallic inclusion genetic characteristic |
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