TY - JOUR
T1 - Microstructure and tensile properties of Ti-Mo alloys manufactured via using laser powder bed fusion
AU - Kang, Nan
AU - Li, Yunlong
AU - Lin, Xin
AU - Feng, Enhao
AU - Huang, Weidong
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/1/15
Y1 - 2019/1/15
N2 - In this work, the dense Ti-7.5Mo sample (over 99.5%) was prepared by using laser powder bed fusion (L-PBF) from powder mixture of pure Ti and pure Mo. Through the use of mechanical mixture process, Mo particles present an uniform distribution. As the laser scanning speed decreases from 1700 mm/s to 1000 mm/s, the sample's relative density increases from 85.5% to 99.5%. The microstructural analysis indicates that Mo particle was mostly fully melted during laser melting. But, some large sized Mo particles were partial melted, which possesses gradient interface structure. Then, the tensile properties of as-fabricated samples under several laser scanning speed were determined. The results shows that the as-fabricated dense sample presents Young's modulus, ultimate tensile strength and strain at failure about of 70 GPa, 740 MPa and 9.2% respectively. Given to this low Young's modulus, which is approximate to bone of 30 GPa, the L-PBF processed Ti-7.5Mo shows great application potential in implant component.
AB - In this work, the dense Ti-7.5Mo sample (over 99.5%) was prepared by using laser powder bed fusion (L-PBF) from powder mixture of pure Ti and pure Mo. Through the use of mechanical mixture process, Mo particles present an uniform distribution. As the laser scanning speed decreases from 1700 mm/s to 1000 mm/s, the sample's relative density increases from 85.5% to 99.5%. The microstructural analysis indicates that Mo particle was mostly fully melted during laser melting. But, some large sized Mo particles were partial melted, which possesses gradient interface structure. Then, the tensile properties of as-fabricated samples under several laser scanning speed were determined. The results shows that the as-fabricated dense sample presents Young's modulus, ultimate tensile strength and strain at failure about of 70 GPa, 740 MPa and 9.2% respectively. Given to this low Young's modulus, which is approximate to bone of 30 GPa, the L-PBF processed Ti-7.5Mo shows great application potential in implant component.
KW - Laser powder bed fusion
KW - Powder mixture
KW - Tensile properties
KW - Ti-Mo alloy
KW - Young's modulus
UR - http://www.scopus.com/inward/record.url?scp=85053059295&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.09.008
DO - 10.1016/j.jallcom.2018.09.008
M3 - 文章
AN - SCOPUS:85053059295
SN - 0925-8388
VL - 771
SP - 877
EP - 884
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -