粉末冶金法制备Ti-Fe系合金的研究  

Study of Ti-Fe Alloy Preparation with Powder Metallurgy Method

作　　者：金秋[1] 李强[1] 王新宇[1] 

机构地区：[1]辽宁工业大学材料科学与工程学院,辽宁锦州121001

出　　处：《辽宁工业大学学报（自然科学版）》2015年第2期120-123,共4页Journal of Liaoning University of Technology(Natural Science Edition)

基　　金：863计划(2011AA060102);辽宁省自然科学基金(2014020111);辽宁省高等学校杰出青年学者成长计划(LJQ2012056)

摘　　要：实验以Ti粉和Fe粉为主要原料,采用粉末冶金的方法制备Ti-Fe系合金。分析了Fe含量和烧结温度对烧结产物烧结密度、开口孔隙度、相组成以及显微组织的影响。并测量不同Ti-Fe合金的力学性能。研究结果表明随着Fe含量的增加和烧结温度的提高,Ti-Fe系合金的烧结密度增加,开孔率降低。压缩强度、压缩模量和显微硬度均增加。Ti-15wt%Fe试样在1 100℃烧结后的体积密度为4.32 g/cm3,开口气孔率为6.5%,压缩强度为1 864.1 MPa,压缩模量为9.5 GPa,维氏硬度为227.3 HV。XRD分析结果表明Ti-Fe系合金中主要相为α-Ti,同时还存在极少的Ti Fe和Ti Fe2相。Ti-based alloys were prepared by power metallurgy method using Ti and Fe powder as initial material. The effects of Fe contents and sintering temperature on sintering density, open porosity, microstructure and phase composition of the Ti-xFe alloys were analyzed. The mechanical properties of different Ti-Fe alloys were measured. The results show with the increase of content of Fe and sintering temperature, the sintering density, compressive strength, modulus and micro-hardness all increase and open porosity decreases. Ti-15wt% alloys sintered at 1100 porosity of 6.5%, compressive strength of 1864.1 MPa, compressive modulus of 9.5 GPa, and micro-hardness of 227.3 HV. XRD analysis shows that Ti-Fe alloys mainly comprise of α-Ti with a little TiFe and TiFe2 phases.

关 键 词：粉末冶金法 Ti-Fe合金 相组成 力学性能 

分 类 号：TG13[一般工业技术—材料科学与工程]