| 半固态挤压形成高铬铸铁梯度组织材料 |
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| 引用本文： | 杨昭,张海峰,王爱民,丁炳哲,胡壮麒. 半固态挤压形成高铬铸铁梯度组织材料[J]. 金属学报, 2003, 39(2): 164-167 |
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| 作者姓名： | 杨昭 张海峰 王爱民 丁炳哲 胡壮麒 |
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| 作者单位： | 中国科学院金属研究所沈阳材料科学(联合)国家实验室,沈阳,110016 |
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| 基金项目： | 国家自然科学基金资助项目 59995440 |
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| 摘 要： | 通过挤压具有等轴状初晶组织的半固态高铬铸铁，样品的液相在应力作用下被挤向表面，凝固后形成了共晶组织沿径向由内向外呈现出体积分数逐步增加的梯度组织。实验表明挤压温度对挤压后共晶组织分布有明显的影响。经过挤压提高了样品中心冲击韧性和表面耐磨性。
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| 关 键 词： | 半固态挤压 高铬铸铁 梯度组织材料 |
| 文章编号： | 0412-1961(2003)02-0164-04 |
| 收稿时间： | 2002-03-18 |
| 修稿时间： | 2002-03-18 |
FORMATION OF THE HIGH CHROMIUM WHITE IRON PARTS WITH GRADIENT STRUCTURE VIA SEMI-SOLID METAL EXTRUSION |
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| YANG Zhao,ZHANG Haifeng,WANG Aimin,DING Bingzhe,HU Zhuangqi. FORMATION OF THE HIGH CHROMIUM WHITE IRON PARTS WITH GRADIENT STRUCTURE VIA SEMI-SOLID METAL EXTRUSION[J]. Acta Metallurgica Sinica, 2003, 39(2): 164-167 |
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| Authors: | YANG Zhao ZHANG Haifeng WANG Aimin DING Bingzhe HU Zhuangqi |
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| Affiliation: | Shenyang National Laboratory for Materials Science, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | The high chromium white iron with equiaxed primary structure was extruded at semisolid state. The liquid phase was squeezed out by pressure. After solidification, the volume percentage of the eutectic structure increases gradually from the center to the perimeter. Test shows that the extrusion temperatures have great effect on the structure of the extruded sample. The compact toughness at the center of the sample and the wear resistance at the perimeter of the sample are improved. |
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| Keywords: | semi-solid metal extrusion high chromium white iron gradient structure |
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