Accurate Measurement of CTE of Aluminum Alloy 7050-T7451 and the Impact on Thermal Deformation Analysis

Fu Lai Sun; Jie Sun; Jian Feng Li; Liang Yu Song; Yu Guo Luo

doi:10.4028/www.scientific.net/AMR.566.476

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 566Accurate Measurement of CTE of Aluminum Alloy...

Accurate Measurement of CTE of Aluminum Alloy 7050-T7451 and the Impact on Thermal Deformation Analysis

Abstract:

Linear expansion coefficient (CTE) is one of the important thermal parameters for materials, which has a great influence on the thermal deformation analyzing. Thermal Mechanical Analysis (TMA) is adopted to measure the CTE of pre-stretched aluminum alloy sheet 7050-T7451 in three vertical directions. The mathematical functions of CTE of aluminum alloy 7050-T7451 are established, which is with three directions and reflect the influence of the temperature. A comparison between the accurate CTE data and the CTE from reference is carried out .The reason of the CTE variation of aluminum 7050-T7451 with temperature also been explained qualitatively.

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Periodical:

Advanced Materials Research (Volume 566)

Pages:

476-479

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.566.476

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Online since:

September 2012

Authors:

Fu Lai Sun, Jie Sun, Jian Feng Li, Liang Yu Song, Yu Guo Luo

Keywords:

Aluminum Alloy 7050-T7451, Linear Expansion Coefficient (CTE), Polynomial Fitting

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