VOLUMETRIC CHANGE AND PRESSURE-INDUCED GRAY-WHITE TRANSITION IN CAST IRONS

机译：铸态离子的体积变化和压力诱导的灰白色转变

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Expansion behaviors in freezing FC, CV and SG cast irons have been investigated by the float method using a laser dilatometer. The volumetric expansion of FG cast iron on eutec-tic solidification agrees with the equation as a function of the modified carbon equivalent CE*(=%C+%Si/5). For the SG cast irons, no distinct dependence of expansion on composition was observed. Expansion pressure generated on the eutectic solidification of FG cast iron was estimated to be of the order of GPa. It has been predicted that the transition from gray to white would occur at less pressures.

机译：冻结的FC，CV和SG铸铁的膨胀行为已通过浮法使用激光膨胀仪进行了研究。共晶凝固时FG铸铁的体积膨胀与该方程式一致，是改性碳当量CE *（=％C +％Si / 5）的函数。对于SG铸铁，未观察到膨胀对成分的明显依赖性。 FG铸铁的共晶凝固产生的膨胀压力估计为GPa量级。据预测，从灰色到白色的转变将在较小的压力下发生。

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《63rd World Foundry Congress Sep 12-18, 1998 Budapest, Hungary》|1998年|p.31.1-31.6|共6页
会议地点 world foundry congress on fonderie sans frontieres casting without borders giessen ohne grenzen(HU)
作者
Akio Kagawa; Shoji Kiguchi; Masashi Osada;
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JAPAN;

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正文语种 eng
中图分类冶金工业;
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VOLUMETRIC CHANGE AND PRESSURE-INDUCED GRAY-WHITE TRANSITION IN CAST IRONS

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