Study on the modification of high silicon aluminium alloy (20%Si-Al) by polytetrafluoroethylene
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The present report relates to an experimental results obtained by measurement of solidification procedure of Al-Si alloy (20% Si) by differential thermal analysis. Summerized results are as follows:(1) In unmodified condition, cooling rate of 3°C/min, Tp=685°C, Te=572°C, T1=113°C, T2=10°C.(2) In case of Paddition, temperature Tp and Te rise with P addition increases, but T2 lowers while T1 rises.(3) In case of polytetrafluoroethylene addition to the alloy with the amount of primary Si is refinable, then temperatures Tp, Te, T1 and T2 are nearly the same; Tp=660-670°C, Te=573°C, T1=90°C, and T2=30°C.(4) In case if P and polytetrafluoroethylene is added in mixture to the alloy with the amount of primary Si crystals are refinable, then the results are the same as (3). In this case T2 values are higher and T1 lower than the cases (1) or (2).
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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