Aging behavior of sub-micron Al2O3P / 2024Al composites

Longtao Jiang; Min Zhao; Gaohui Wu; Qiang Zhang

Aging behavior of sub-micron Al₂O_3P / 2024Al composites

Longtao Jiang^*
, Min Zhao
, Gaohui Wu
, Qiang Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Age-hardening behaviors of nearly spherical 0.3 μm-Al₂O₃ particles reinforced 2024A1 composites at temperatures of 160°C, 175°C and 190°C were studied by means of Brinell-hardness measurement, TEM and DSC. The results show that due to the addition of sub-micron Al₂O₃ particles, the hardness of the composite was obviously increased. While the age-hardening efficiency of Al₂O_3P / Al composite was lower than that of the monolithic 2024 alloy. Formation of GP regions was suppressed and the thermal-diffusion activation energy of S' phase was increased which made the precipitation of 5' phase more difficult. And the number and size of precipitates in the composite were relatively less and smaller.

Original language	English
Pages (from-to)	1869-1873
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	35
Issue number	12
State	Published - Dec 2006

Keywords

Aging behavior
Al alloy matrix composites
Aluminum alloys
Sub-micron AlO particles

Cite this

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title = "Aging behavior of sub-micron Al2O3P / 2024Al composites",

abstract = "Age-hardening behaviors of nearly spherical 0.3 μm-Al2O3 particles reinforced 2024A1 composites at temperatures of 160°C, 175°C and 190°C were studied by means of Brinell-hardness measurement, TEM and DSC. The results show that due to the addition of sub-micron Al2O3 particles, the hardness of the composite was obviously increased. While the age-hardening efficiency of Al2O3P / Al composite was lower than that of the monolithic 2024 alloy. Formation of GP regions was suppressed and the thermal-diffusion activation energy of S' phase was increased which made the precipitation of 5' phase more difficult. And the number and size of precipitates in the composite were relatively less and smaller.",

keywords = "Aging behavior, Al alloy matrix composites, Aluminum alloys, Sub-micron AlO particles",

author = "Longtao Jiang and Min Zhao and Gaohui Wu and Qiang Zhang",

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journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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TY - JOUR

T1 - Aging behavior of sub-micron Al2O3P / 2024Al composites

AU - Jiang, Longtao

AU - Zhao, Min

AU - Wu, Gaohui

AU - Zhang, Qiang

PY - 2006/12

Y1 - 2006/12

N2 - Age-hardening behaviors of nearly spherical 0.3 μm-Al2O3 particles reinforced 2024A1 composites at temperatures of 160°C, 175°C and 190°C were studied by means of Brinell-hardness measurement, TEM and DSC. The results show that due to the addition of sub-micron Al2O3 particles, the hardness of the composite was obviously increased. While the age-hardening efficiency of Al2O3P / Al composite was lower than that of the monolithic 2024 alloy. Formation of GP regions was suppressed and the thermal-diffusion activation energy of S' phase was increased which made the precipitation of 5' phase more difficult. And the number and size of precipitates in the composite were relatively less and smaller.

AB - Age-hardening behaviors of nearly spherical 0.3 μm-Al2O3 particles reinforced 2024A1 composites at temperatures of 160°C, 175°C and 190°C were studied by means of Brinell-hardness measurement, TEM and DSC. The results show that due to the addition of sub-micron Al2O3 particles, the hardness of the composite was obviously increased. While the age-hardening efficiency of Al2O3P / Al composite was lower than that of the monolithic 2024 alloy. Formation of GP regions was suppressed and the thermal-diffusion activation energy of S' phase was increased which made the precipitation of 5' phase more difficult. And the number and size of precipitates in the composite were relatively less and smaller.

KW - Aging behavior

KW - Al alloy matrix composites

KW - Aluminum alloys

KW - Sub-micron AlO particles

UR - https://www.scopus.com/pages/publications/33947539998

M3 - 文章

AN - SCOPUS:33947539998

SN - 1002-185X

VL - 35

SP - 1869

EP - 1873

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 12

ER -

Aging behavior of sub-micron Al₂O_3P / 2024Al composites

Abstract

Keywords

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