摘要
通过熔铸法原位合成了(Ti3Sn+Ti5Si3)增强Ti基复合材料,利用扫描电镜观察了包含相间隔的细晶粒Ti基体与Ti3Sn和Ti与Ti5Si3组成的共晶组织。对试样进行室温下的压缩性能测试,结果表明,随着Sn含量的增加,试样的杨氏模量和耐压强度都比Ti-Si合金高;当Sn含量达到25wt%时,试样的杨氏模量和耐压强度降低,但压缩率有所升高。
Ti-based composite reinforced with eutectic Ti3Sn＋Ti5Si3 intermetallics was prepared by non-consumable vacuum arc melting.The composites exhibite a hypoeutectic microstructure with primary Ti solid solution and Ti3Sn phases,plusing eutectic Ti＋Ti5Si3,which can be observed by using SEM.The room temperature compressive test results show that the Young＇s modulus and ultimate compressive strength（UCS） of the composites are higher than that of the Ti-Si hypoeutectic alloy with the increase of Sn.When Sn reaches 25wt%,the Young＇s modulus and ultimate compressive strength begin to fall,while the compression ratio rises.
出处
《热加工工艺》
CSCD
北大核心
2011年第22期103-104,共2页
Hot Working Technology
