Dimensional Stability of Aluminosilicate Fiber Reinforced  Aluminum Alloy in Thermal Cycle

Xu Wenjuan   Wu Shenqing   Wei Zhongshan  Li Jun

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Dimensional Stability of Aluminosilicate Fiber Reinforced Aluminum Alloy in Thermal Cycle
Issue 5, Pages: 1-3(1999)
Published： 1999 ，
DOI：

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[1]徐文娟,吴申庆,卫中山,李军.短纤维增强铝基复合材料的热循环尺寸稳定性[J].特种铸造及有色合金,1999(05):1-3.

Xu Wenjuan Wu Shenqing Wei Zhongshan Li Jun. Dimensional Stability of Aluminosilicate Fiber Reinforced Aluminum Alloy in Thermal Cycle. [J]. Special Casting & Nonferrous Alloys (5):1-3(1999)
[1]徐文娟,吴申庆,卫中山,李军.短纤维增强铝基复合材料的热循环尺寸稳定性[J].特种铸造及有色合金,1999(05):1-3. DOI：

Xu Wenjuan Wu Shenqing Wei Zhongshan Li Jun. Dimensional Stability of Aluminosilicate Fiber Reinforced Aluminum Alloy in Thermal Cycle. [J]. Special Casting & Nonferrous Alloys (5):1-3(1999) DOI：

摘要

研究了在热循环条件下，硅酸铝短纤维增强的普通活塞铝合金（ＺＬ１０９）复合材料的尺寸稳定性。研究结果表明，热循环能导致样品的尺寸发生变化。随着纤维体积分数的增加，样品的尺寸变形程度明显降低。这是由于纤维与基体之间的热膨胀失配引起的内应力造成了热应变的迟滞，从而导致样品的尺寸变化。

Abstract

Dimensional stability of the conventional piston Al alloy ZL109

reinforced with aluminosilicate short fiber

in thermal cycle was investigated.The results showed that thermal cycle caused residual dimensional changes of the specimens

and with the fiber contents increasing

the extents of dimensional changes decrease obviously. It is considered that inte rnal stresses due to the mismatch in the thermal expansion between fibers and matrix induce thermal strain delay so as to reduce the dimensional changes of the specimens