摘要
针对"骨置换"材料的高强度、低弹性模量需求,基于粉末冶金制备工艺,对钛钼Ti84Mo16二元粉采用2 h球磨,然后在球磨粉中添加比例分别为1%、2%、5%纳米级SiO2粉后压坯成型,并在1 200℃条件下保温5 h固相烧结制备合金。研究发现,在Ti84Mo16合金中添加不同比例的SiO2后,其屈服强度提高17.92%,断裂强度提高5.8%,但合金塑性降低,弹性模量没有增加,依然与"骨置换"材料要求所匹配。
The bone-replacing materials require high strength and low elastic modulus. In this investigation, Ti84Mo16 binary composite powders were prepared by the powder metallurgy. After milling for 2 h, Ti84Mo16 binary composite powders were doped with 1%, 2% and 5% nanometer SiO2 powder; followed by compacting then were sintered at 1 200℃for 5 h. The results show with increase of SiO2 content, the yield strength and yield strength of Ti84 Mo16 alloy increases by 17. 92%, and 5.8% respectively, but the plasticity decreases, and Elastic Modulus, do not increase, thus can meet the requirements of bone-replacing materials.
出处
《铸造技术》
CAS
北大核心
2008年第12期1681-1684,共4页
Foundry Technology
