...crystal growth direction; permanent mould casting; microstructure [gap=32942]关键词： Al−Cu合金；定向凝固；晶体生长方向；金属型铸造；显微组织 ...
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The result shows that hardness of diamond film is related to not only crystal growth direction but also thickness.
结果显示金刚石膜的硬度不仅与晶体生长方向和晶粒大小有关，还与厚度有关。
The selecting principle of crystalline growth direction was researched from crystal habit, lattice structure and crystal brittleness of sapphire crystal.
并从蓝宝石晶体的结晶习性、晶格结构及晶体脆性等方面研究晶体生长方向的选取原则。
But in the backing welding, columnar grain-growth will be appeared in the direction of crystal direction, it effects the welding quality seriously.
但是单面焊打底层焊缝中出现的沿焊缝柱状晶结晶方向的柱状气孔，严重地影响着船舶焊接质量。
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