leometwu的部落格

TL at 1200, you get FC 250, TL at 1150, you get FC 150.

The height of TL dictates the FC numbers.  The height of white Eutectic plateau dictates the Si%. The length of this plateau tells the C%. 

初晶轉折點(TL)位置高低是材質高低的指標. 白共晶平台(TE) 高低是Si%多少的指標; 長短是C%多少的指標.

下: 初晶溫度應在1處 但沒有水平線段, 電腦程式抓不到*. 2被誤認為初晶 所以FC才8.2而以, 其實應該是53.

註*: 吳老師要電腦抓"最高溫尖峰(Tmax)後的第一個水平線段"作為 初晶溫度(TL)
 

above: 1 is where TL should be. 2 is where TE should be. Very short TE plateau means very low C%.

below: Computer is not able to tell TE with this dome top of the curve.

below: Too low a Tmax in the cup will lead to a wrong TE plateau. 
 

Too little iron melt in the cup.
 

Too little tellurium dissolved in the cup leads to a wrong TE plateau.