灵鹊做题网翻译有关于机械与材料的外文文献
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翻译有关于机械与材料的外文文献
3.1.2. Effects of modification on the microstructure of high chromium cast iron heat treatment
In order to improve the abrasion resistance of components, the coordination between matrix structure with high toughness and hard carbides in the high chromium cast iron is required. However, the microstructure of as-cast materials cannot meet this requirement. Therefore, it is necessary to improve the microstructure of the matrix and the morphology, size, quantity and distribution of carbides by means of
heat treatment, which can take full advantages of the abrasion resistance of the material. The metallographs shown in Figs. 2(a) and 2(b) are the microstructures of heat treated high chromium cast iron modified with 0% RE, 0% V, 0.3% Ti and 0.1% B, and 0.8% RE, 0.4% V, 0.3% Ti and 0.1% B,
respectively. It can be observed that the morphology of carbides is almost unchanged after heat treatment, but the size of carbides is further reduced and the isolated degree of carbide is increased.
3.1.2. Effects of modification on the microstructure of high chromium cast iron heat treatment
In order to improve the abrasion resistance of components, the coordination between matrix structure with high toughness and hard carbides in the high chromium cast iron is required. However, the microstructure of as-cast materials cannot meet this requirement. Therefore, it is necessary to improve the microstructure of the matrix and the morphology, size, quantity and distribution of carbides by means of
heat treatment, which can take full advantages of the abrasion resistance of the material. The metallographs shown in Figs. 2(a) and 2(b) are the microstructures of heat treated high chromium cast iron modified with 0% RE, 0% V, 0.3% Ti and 0.1% B, and 0.8% RE, 0.4% V, 0.3% Ti and 0.1% B,
respectively. It can be observed that the morphology of carbides is almost unchanged after heat treatment, but the size of carbides is further reduced and the isolated degree of carbide is increased.
3.1.2.修改对高铬铸铁热处理的微观结构
为了提高零件的耐磨性,高韧性的矩阵结构之间的协调和努力高铬铸铁中的碳化物是必需的.然而,铸态材料的微观结构并不能满足这一要求.因此,有必要改善矩阵的微观结构和形态、大小、数量和分布的碳化物的手段
热处理,可以充分材料的耐磨性的优点.无花果所示的金相照片.2(a)和2(b)是热处理高铬铸铁的显微结构修改与再保险0%,0% V,Ti 0.3%,b,0.1%和0.8%的再保险,V,0.4% 0.3%钛和0.1%,
分别.它可以观察到,碳化物的形态几乎是热处理后不变,但碳化物的尺寸进一步缩小,孤立的碳化程度的增加.
为了提高零件的耐磨性,高韧性的矩阵结构之间的协调和努力高铬铸铁中的碳化物是必需的.然而,铸态材料的微观结构并不能满足这一要求.因此,有必要改善矩阵的微观结构和形态、大小、数量和分布的碳化物的手段
热处理,可以充分材料的耐磨性的优点.无花果所示的金相照片.2(a)和2(b)是热处理高铬铸铁的显微结构修改与再保险0%,0% V,Ti 0.3%,b,0.1%和0.8%的再保险,V,0.4% 0.3%钛和0.1%,
分别.它可以观察到,碳化物的形态几乎是热处理后不变,但碳化物的尺寸进一步缩小,孤立的碳化程度的增加.