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Study on Corrosion Behavior of 2D12 Aluminum Alloy

Dai Li-jin

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Abstract

The corrosion behavior of 2D12 alloy was evaluated including intergranular corrosion,exfoliation and stress corrosion cracking.The results show that there are intergranular corrosion and exfoliation tendency for 2D12 alloy T4 temper.It is also shown that the K_(ICC) of S-L and S-T orientation are 22.6 and 27.1 MPa·m~(1/2,) respectively,that is the same as C-ring result,and the fractographies of T4 temper reveal intergranular fracture.

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What this paper is about

The corrosion behavior of 2D12 alloy was evaluated including intergranular corrosion,exfoliation and stress corrosion cracking.The results show that there are intergranular corrosion and exfoliation tendency for 2D12 alloy T4 temper.It is also shown that the K_(ICC) of S-L and S-T orientation are 22.6 and 27.1 MPa·m~(1/2,) respectively,that is the same as C-ring result,and the fractographies of T4 temper reveal intergranular fracture.

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Available abstract

The corrosion behavior of 2D12 alloy was evaluated including intergranular corrosion,exfoliation and stress corrosion cracking.The results show that there are intergranular corrosion and exfoliation tendency for 2D12 alloy T4 temper.It is also shown that the K_(ICC) of S-L and S-T orientation are 22.6 and 27.1 MPa·m~(1/2,) respectively,that is the same as C-ring result,and the fractographies of T4 temper reveal intergranular fracture.

Key concepts: Intergranular corrosion, Materials science, Alloy, Metallurgy, Corrosion, Stress corrosion cracking, Exfoliation joint, Intergranular fracture

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