The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiC<sub>p</sub>/LD7 Composite

Ji Feng1; Song Aijun1; Zhang Weiguo1; Zong Haitao1; Liang Shunxing1; Ma Mingzhen1

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The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiC_p/LD7 Composite
Issue S1, Pages: 326-328(2008)
Published： 2008 ，
DOI：

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[1]嵇峰,宋爱君,张卫国,宗海涛,梁顺星,马明臻.原位自生TiC_p/LD7复合材料高温蠕变应力指数及激活能[J].特种铸造及有色合金,2008(S1):326-328.

Ji Feng1, Song Aijun1, Zhang Weiguo1, et al. The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiC_p/LD7 Composite. [J]. Special Casting & Nonferrous Alloys (S1):326-328(2008)
[1]嵇峰,宋爱君,张卫国,宗海涛,梁顺星,马明臻.原位自生TiC_p/LD7复合材料高温蠕变应力指数及激活能[J].特种铸造及有色合金,2008(S1):326-328. DOI：

Ji Feng1, Song Aijun1, Zhang Weiguo1, et al. The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiC_p/LD7 Composite. [J]. Special Casting & Nonferrous Alloys (S1):326-328(2008) DOI：

摘要

在523K、573K和623K恒应力压缩条件下研究了LD7铝合金和原位自生15TiCP/LD7

20TiCp/LD7铝基复合材料的高温蠕变应力指数及其激活能。试验结果显示

在523K和573K复合材料的应力指数和表观激活能均高于LD7基体铝合金。TiC颗粒的存在

明显改善了LD7铝合金的高温蠕变性能。

Abstract

The creep behavior of LD7 aluminum alloy and in situ TiCp/LD7 aluminum matrix composites （15% and 20% volume fraction of TiC particles） was investigated under a condition of constant compressive stress at 523 K

573K and 623 K

respectively. The results have shown that both the stress exponent and the apparent activation energy of the composite materials were higher than these of LD7 aluminum alloy at 523 K and 573K

indicating that the existence of TiC particles significantly improves the high-temperature creep property of LD7-aluminum alloy.

关键词

TiCp/LD7复合材料蠕变行为应力指数激活能

Keywords

in situ TiCp/LD7 aluminum matrix compositeCreep Behaviorthreshold stressActivation Energy

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The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiCp/LD7 Composite

DOI：

摘要

Abstract

关键词

Keywords

references

The stress exponent and the apparent activation energy of high temperature creep berhavior of In Situ Synthesized TiC_p/LD7 Composite