在未预热的熔覆层内，先共晶的奥氏体枝晶的生长，从界面开始逆温度梯度方向定向生长．直到熔覆层的表面。
On the non preheating cladding layer, the eutectic austenite dendrite growth is along the opposite direction of temperature gradient beginning from interface to face of cladding layer.
采用自行研制的倾斜取样板进行取样，并借助金相图像分析系统研究了半固态高铬铸铁先共晶奥氏体的衍变过程。
The evolution of pro-eutectic austenite in semi-solid high chromium cast iron was studied by self-made slope sampling plate through metallographical image analysis system.
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