Simultaneous Spheroidization and Refinement of Si Phase in Al-Si Alloy Surface by Friction at Elevated Temperature

Li Huiping1; Lu Dehong1; Pan Liangxing2; Zhou Ming3; Wei Shaosheng3

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Simultaneous Spheroidization and Refinement of Si Phase in Al-Si Alloy Surface by Friction at Elevated Temperature
Vol. 29, Issue 6, Pages: 567-570(2009)
Published： 2009 ，
DOI：

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[1]李慧平,卢德宏,潘亮星,周明,魏绍生.铝硅合金高温摩擦表层Si相细化和球化现象[J].特种铸造及有色合金,2009,29(06):567-570+489.

Li Huiping1, Lu Dehong1, Pan Liangxing2, et al. Simultaneous Spheroidization and Refinement of Si Phase in Al-Si Alloy Surface by Friction at Elevated Temperature. [J]. Special Casting & Nonferrous Alloys 29(6):567-570(2009)
[1]李慧平,卢德宏,潘亮星,周明,魏绍生.铝硅合金高温摩擦表层Si相细化和球化现象[J].特种铸造及有色合金,2009,29(06):567-570+489. DOI：

Li Huiping1, Lu Dehong1, Pan Liangxing2, et al. Simultaneous Spheroidization and Refinement of Si Phase in Al-Si Alloy Surface by Friction at Elevated Temperature. [J]. Special Casting & Nonferrous Alloys 29(6):567-570(2009) DOI：

摘要

研究了高温摩擦条件下铝硅合金摩擦表层组织中Si相的同时细化和球化现象。在330℃下

将AlSi7、AlSi12、AlSi30合金试样分别与H13钢试样进行高温摩擦试验。结果发现

铝硅合金试样摩擦表层中

Si相颗粒都获得了同时细化和球化

其中3种合金Si相颗粒平均直径分别达到0.89、0.98、1.05μm

形状因子分别达到0.79、0.71和0.67。

Abstract

The friction testing were carried out for H13 steel with Al-7Si

Al-12Si and Al-30Si samples

respectively

at 330℃ to observe simultaneous spheroidization and refinement of Si phase in friction surface of Al-Si alloy.It is found that Si phase is both refined and spheroidized in frictional layer of Al-Si alloy surface

in which average diameters of Si particle in three kinds of alloys reach 0.89

0.98 and 1.05 μm

respectively

and shape factors reach 0.79

0.71 and 0.67

respectively.