以中间合金的方式向亚共晶铝硅合金ZL101中添加不同含量的稀土钕进行变质处理, 研究了变质前后合金的组织、力学性能、拉伸断口形貌及物相组成。结果表明: 稀土钕对ZL101合金具有变质作用, 随钕含量的增加合金的硬度、强度及伸长率均先升后降, 钕添加量为0.3%时变质效果最佳, 合金硬度、抗拉强度及伸长率分别达到72 HBS, 190 MPa, 2.9%; 添加钕后合金拉伸断口中有韧窝出现; 钕含量达到0.4%时, 合金中生成的化合物相为Al8Si8MgNd2。
所属栏目
试验研究江苏省产学研联合创新资金前瞻性联合研究项目(BY2011101)
收稿日期
2011/10/242012/7/22
作者单位
檀廷佐:南京航空航天大学材料科学与技术学院, 南京 211106
姚正军:南京航空航天大学材料科学与技术学院, 南京 211106
袁灿:南京航空航天大学材料科学与技术学院, 南京 211106
徐军:江苏江旭铸造集团有限公司, 宜兴 214203
魏东博:南京航空航天大学材料科学与技术学院, 南京 211106
备注
檀廷佐(1987-), 男, 安徽安庆人, 硕士研究生。
引用该论文:
TAN Ting-zuo,YAO Zheng-jun,YUAN Can,XU Jun,WEI Dong-bo.Effect of Rare Earth Element Nd on the Microstructures and Properties of Hypoeutectic Al-Si Alloy[J].Materials for mechancial engineering,2012,36(11):36～40
檀廷佐,姚正军,袁灿,徐军,魏东博.稀土钕对亚共晶铝硅合金组织及性能的影响[J].机械工程材料,2012,36(11):36～40
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