Microstructure Characteristics and Phase Components of Al-Si-Ni-Cu-Mg Alloy by Spray Deposition

Wang Feng

doi:10.15980/j.tzzz.2000.04.001

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Microstructure Characteristics and Phase Components of Al-Si-Ni-Cu-Mg Alloy by Spray Deposition
Issue 4, Pages: 1-3(2000)
Published： 2000 ，
DOI： 10.15980/j.tzzz.2000.04.001

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[1]王锋,杨滨,崔华,段先进,张济山,熊柏青,张永安.喷射沉积Al-Si-Ni-Cu-Mg合金的显微组织和相组成[J].特种铸造及有色合金,2000(04):1-3+3.

Wang Feng. Microstructure Characteristics and Phase Components of Al-Si-Ni-Cu-Mg Alloy by Spray Deposition. [J]. Special Casting & Nonferrous Alloys (4):1-3(2000)
[1]王锋,杨滨,崔华,段先进,张济山,熊柏青,张永安.喷射沉积Al-Si-Ni-Cu-Mg合金的显微组织和相组成[J].特种铸造及有色合金,2000(04):1-3+3. DOI： 10.15980/j.tzzz.2000.04.001.

Wang Feng. Microstructure Characteristics and Phase Components of Al-Si-Ni-Cu-Mg Alloy by Spray Deposition. [J]. Special Casting & Nonferrous Alloys (4):1-3(2000) DOI： 10.15980/j.tzzz.2000.04.001.

摘要

利用喷射沉积技术制备了AlSi2 0Ni4Cu3Mg合金

分析了合金沉积态、挤压态和T6热处理态的微观组织。结果表明

组织中存在三种含Ni的金属间化合物

在挤压和T6热处理时

它们能够有效地阻碍Si原子的扩散

抑制初晶Si的长大。此外

起沉淀强化作用的Cu与Al

Si一起形成了金属间化合物

影响了合金在T6热处理时的沉淀强化作用。

Abstract

Al Si Ni Cu Mg alloy was fabricated by spray deposition technique. The microstructure of alloy in deposited

extruded and T6 heat treated states has been analyzed. The results showed that the existence of three nickel containing intermetallic compound in the microstructure can prevent effectively the diffusion of silicon atoms and restrain the growth of primary silicon particles under extruded and T6 heat treated conditions. Furthermore

the precipitation strengthening effect of Cu with T6 heat treatment was influenced by the formation of Cu containing Al Si intermetallic compound.