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以元素粉末为原料,采用模压烧结技术制备了Ti-(2-20)Fe合金(Fe分别为2%、5%、10%、15%和20%),探讨了烧结工艺及Fe含量对合金组织和力学性能的影响规律。结果表明,在1100~1300℃烧结温度内可制备出组织成分均匀、高致密度(约为98%)的Ti-Fe合金材料。随Fe元素含量的提高,合金的烧结致密化温度明显降低,制备合金的晶粒尺寸减小,α层片体积含量降低并逐渐细化。当Fe含量为20%时,合金由单一β相晶粒构成。在1150℃烧结制备的Ti-15Fe合金相对具有最优的综合性能,其硬度为43.9 HRC,弹性模量为64.6 GPa,抗压强度为2702 MPa,压缩率为32.7%。
Ti- (2-20) Fe alloy (2%, 5%, 10%, 15% and 20%, respectively) was prepared by molding and sintering with elemental powder as raw material. The effects of sintering process and Fe content on the wear resistance of the alloy Tissue and mechanical properties of the law of influence. The results show that Ti-Fe alloy with uniform microstructure and high density (about 98%) can be prepared at 1100 ~ 1300 ℃ sintering temperature. With the increase of Fe content, the sintering densification temperature of the alloy decreased obviously, the grain size of the prepared alloy decreased, and the volume fraction of α-lamellar decreased and gradually refined. When the Fe content is 20%, the alloy consists of single β-phase grains. Ti-15Fe alloy prepared by sintering at 1150 ℃ has the best comprehensive properties. Its hardness is 43.9 HRC, elastic modulus is 64.6 GPa, compressive strength is 2702 MPa and compressibility is 32.7%.