By purifying the alloy melt, refining matrix grain and carbide, it is possible to increase the impact toughness of the Cr-alloyed white cast iron.
通过净化合金液，细化基体晶粒，细化碳化物可使铬合金白口铸铁的冲击韧性提高。
The changes in chemical and phase composition of spinel in the grain and matrix of specimens after high temperature treatment have also been investigated.
分析了试样经高温处理后基质和颗粒中的尖晶石相组成及化学成分的变化规律。
The critical event for cleavage fracture in notched specimens is the propagation of a ferrite grain-sized crack into the matrix, and is independent of specimen sizes and widths.
在缺口试样中，解理断裂的临界事件是铁素体晶粒尺寸的裂纹扩展进入基体，不随试样尺寸和宽度变化。
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