Effect of T6 heat treatment and artificial aging on mechanics and fatigue properties of A356.0 aluminum alloy produced by 350 rpm centrifugal casting

2016 6th International Annual Engineering Seminar (InAES) Pub Date : 2016-08-01 DOI:10.1109/INAES.2016.7821938

P. T. Iswanto, H. Akhyar, V. Malau, Suyitno, R. Wirawan

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引用次数: 6

Abstract

In this experiment, the effect of T6 heat treatment and artificial aging on fatigue properties was investigated from A356 aluminum alloy for motorcycle wheel produced by 350 rpm centrifugal casting. The pouring temperature was set at 750 °C and the mold temperature was preheated at 250 °C. The sample was solution heat treated at 540 °C for 4 hours followed by fast quenching immersing into the water at room temperature. Then, samples treat by natural aging at 30 °C and artificial aging at 150, 175, 200 °C for 2 h respectively. The result shows fatigue cycles is a significant increase. The highest fatigue live is 371,411 cycles from the sample by T6 heat treatment and aging temperature at 175 °C. It is shown that fatigue live of motorcycle wheel from A350 aluminum alloy by 350 rpm centrifugal casting can be improved by heat treatment, in this study by artificial aging with the temperature of 175 °C. It indicates that heat treatment can improve fatigue live of motorcycle wheel from A350 aluminum alloy by 350 rpm centrifugal casting.

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T6热处理和人工时效对350rpm离心铸造A356.0铝合金力学和疲劳性能的影响

本试验研究了T6热处理和人工时效对350rpm离心铸造摩托车轮毂用A356铝合金疲劳性能的影响。浇注温度设定为750℃，模具温度预热为250℃。样品在540℃固溶热处理4小时，然后在室温下浸入水中快速淬火。然后分别在30℃自然时效和150℃、175℃、200℃人工时效2 h。结果表明，疲劳循环次数明显增加。经T6热处理和175℃时效处理后，试样的最高疲劳寿命为371,411次。结果表明，350转/分离心铸造A350铝合金摩托车轮毂的疲劳寿命可以通过热处理得到提高，本研究采用175℃人工时效处理。结果表明，采用350转/分离心铸造工艺对A350铝合金摩托车轮毂进行热处理可提高其疲劳寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 6th International Annual Engineering Seminar (InAES)

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