混合盐反应法制备TiB2p/Al-10Sn复合材料
Preparation of TiB2p/Al-10Sn Composites by Mixed Salt Reaction
摘 要
在对Al-KBF4-K2TiF6-Na3AlF6反应体系进行热力学分析的基础上,用混合盐反应法原位合成了TiB2p/Al-10Sn复合材料;用XRD、SEM、硬度仪等对复合材料的物相组成、显微组织和硬度进行了分析.结果表明:该复合材料主要由α-Al、β-Sn 和TiB2三相组成;内生的TiB2颗粒细小(0.8~1.5 μm),并弥散分布在基体α-Al晶内;在α-Al与共晶β-Sn的交界处出现颗粒团聚,并形成锡包TiB2颗粒组织;与Al-10Sn基体合金相比,复合材料的硬度显著提高.
TiB2颗粒
铝基复合材料
in-situ synthesis
TiB2 particle
aluminum matrix composite
Abstract
Based on the thermodynamical analysis of Al-KBF4-K2TiF6-Na3AlF6 reaction system,the TiB2p/Al-10Sn composite was fabricated by the mixed salt reaction in-situ synthesis process.The phase composition,microstructure and hardness of the composite were investigated by means of XRD,SEM and sclerometer respectively.The results showed that there were α-Al,β-Sn and TiB2 phases in the composites.The in-situ TiB2 particles with mean size of 0.8-1.5 μm dispersed in the α-Al matrix homogeneously,and the agglomeration of TiB2 particles occurred in the interface between α-Al and eutectic β-Sn,which formed the structure of TiB2 particles wrapped by tin film.Compared with Al-10Sn matrix alloy,the composites had higher hardness.
中图分类号 TB333
所属栏目 新材料 新工艺
基金项目 广西科技开发计划资助项目(桂科能0443001-1)
收稿日期 2007/11/1
修改稿日期 2008/4/2
网络出版日期
作者单位点击查看
备注崔国明(1979-),男,河南原阳人,讲师,硕士.
引用该论文: CUI Guo-ming,WU Jin-jie,YUAN Hong-ling,LI Xing-xia,ZENG Jian-min. Preparation of TiB2p/Al-10Sn Composites by Mixed Salt Reaction[J]. Materials for mechancial engineering, 2008, 32(11): 39～41
崔国明,吴金杰,原红玲,李兴霞,曾建民. 混合盐反应法制备TiB2p/Al-10Sn复合材料[J]. 机械工程材料, 2008, 32(11): 39～41
被引情况:
【1】刘磊,赵玉涛,贾志宏,陈刚,轩动华, "磁化学原位合成制备ZrB2p/A356复合材料及其表征",机械工程材料 34, 29-32(2010)
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