Abstract

High strength Aluminum Alloy (AA8079) was synthesized through powder metallurgy (PM) technique and the effect of PM parameters on the properties was investigated based on Taguchi L9 orthogonal array experimental design. The compaction pressure, sintering temperature, and sintering time were chosen as input parameters and the properties such as hardness, compressive strength, and density were considered as responses. From signal to noise (SN) Ratio analysis, it is observed that the high level of compaction pressure (600 MPa), sintering temperature (600°C), and sintering time (3 h) is required to achieve the better compressive strength and hardness of alloy. From the ANOVA analysis, compaction pressure and sintering temperature were identified as highly contributing parameters to affect the properties of the PM AA8079. Further a confirmation test was conducted with the optimum parameter for validation of the Taguchi results. Microstructure analyses were conducted for all the nine samples to discuss the effect of parameters on the properties.

中文翻译：

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高强度AA8079（Al–Fe–Cu–Si–Zn）的显微组织分析和改善性能的参数优化

摘要

通过粉末冶金（PM）技术合成了高强度铝合金（AA8079），并基于田口L9正交试验设计，研究了PM参数对性能的影响。选择压实压力，烧结温度和烧结时间作为输入参数，并考虑诸如硬度，抗压强度和密度的性质作为响应。从信噪比（SN）分析可以看出，要获得更好的抗压强度和硬度，需要高水平的压实压力（600 MPa），烧结温度（600°C）和烧结时间（3 h）。合金。通过ANOVA分析，可以确定压实压力和烧结温度是影响PM AA8079性能的重要因素。进一步用最佳参数进行了确认测试，以验证田口结果。对所有九个样品进行了微结构分析，以讨论参数对性能的影响。