QUANTITATIVE INVESTIGATION OF HOT TEARING SENSITIVITY IN AL-9SI-FE(MN) ALLOYS

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Journal: METALLURGICAL ENGINEERING Year:2016 | Volume:19 | Issue:3 (63) Page(s): 195-205

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Title

QUANTITATIVE INVESTIGATION OF HOT TEARING SENSITIVITY IN AL-9SI-FE(MN) ALLOYS

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Abstract

The effect of Fe addition (0.5، 1، 1.5 and 2 wt %) and Mn modification (Mn/Fe=0.5) on hot tearing behavior of F332 Al alloys was investigated. The results show that due to the formation of fine interdendritic b-Al5FeSi platelets، Fe addition up to 0.5 wt% improves high temperature tensile properties and promotes the formation of equiaxed grains thereby increases the hot tearing resistance of the alloy by about 25%. Further addition of Fe up to 2 wt%، however، increases the size and volume fraction of b-platelets، decreases the tensile properties، reduces the fluidity and interdendritic feeding and consequently substantially increases the hot tearing susceptibility (HTS). Mn addition، however، was shown that changes the morphology of b-platelets to less harmful Chinese script، polyhedral or star-like a-Al15(Fe،Mn)3Si2 whereby improves the tensile properties and interdendritic feeding characteristic of the alloy. Therefore، the HTS value is decreased to zero for 0.5 and 1 wt% Fe alloys، but increased by 50 and 40 %، respectively in the case of 1.5 and 2 wt% Fe containing alloys.

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APA: Copy

. (2016). QUANTITATIVE INVESTIGATION OF HOT TEARING SENSITIVITY IN AL-9SI-FE(MN) ALLOYS. METALLURGICAL ENGINEERING, 19(3 (63) ), 195-205. SID. https://sid.ir/paper/112436/en

Vancouver: Copy

. QUANTITATIVE INVESTIGATION OF HOT TEARING SENSITIVITY IN AL-9SI-FE(MN) ALLOYS. METALLURGICAL ENGINEERING[Internet]. 2016;19(3 (63) ):195-205. Available from: https://sid.ir/paper/112436/en

IEEE: Copy

, “QUANTITATIVE INVESTIGATION OF HOT TEARING SENSITIVITY IN AL-9SI-FE(MN) ALLOYS,” METALLURGICAL ENGINEERING, vol. 19, no. 3 (63) , pp. 195–205, 2016, [Online]. Available: https://sid.ir/paper/112436/en

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