TY - JOUR
T1 - Surface integrity and fatigue behavior for high-speed milling Ti-10V-2Fe-3Al titanium alloy
AU - Yao, C. F.
AU - Tan, L.
AU - Ren, J. X.
AU - Lin, Q.
AU - Liang, Y. S.
PY - 2014/2
Y1 - 2014/2
N2 - Influence of cutting parameters on surface integrity when milling Ti-10V-2Fe-3Al is investigated based on high-speed cutting experiments. Surface integrity measurements, fatigue fractography analysis, and fatigue life tests are conducted to reveal the effect of surface integrity on crack initiation and fatigue life. The results show that under given experiment conditions, surface roughness decreases linearly when increasing cutting speed or decreasing feed per tooth. The latter has a greater impact on surface roughness than the former. Compressive stress can be detected on all machined surfaces. With the increase of feed per tooth or cutting speed, respectively, residual stress presents a linear increase. Cutting parameters have no significant impact on micro-hardness. When the surface roughness ranges from 0.5 to 1.0 μm, the effect of surface residual stress on fatigue life is more than that of surface roughness. When the surface residual compressive stress increases, the fatigue life improves significantly. Compared with 60 m/min, when cutting speed is 100 or 140 m/min, the surface roughness decreases, the surface residual compressive stress increases, and the fatigue life improves by 124 and 59%, respectively. Under a tensile load, fatigue crack on machined surface of Ti-10V-2Fe-3Al titanium alloy originates at the cross-edge of the specimen surface. With the increase of surface roughness, the area ratio of fatigue crack propagation zone, and fatigue fracture zone decreases.
AB - Influence of cutting parameters on surface integrity when milling Ti-10V-2Fe-3Al is investigated based on high-speed cutting experiments. Surface integrity measurements, fatigue fractography analysis, and fatigue life tests are conducted to reveal the effect of surface integrity on crack initiation and fatigue life. The results show that under given experiment conditions, surface roughness decreases linearly when increasing cutting speed or decreasing feed per tooth. The latter has a greater impact on surface roughness than the former. Compressive stress can be detected on all machined surfaces. With the increase of feed per tooth or cutting speed, respectively, residual stress presents a linear increase. Cutting parameters have no significant impact on micro-hardness. When the surface roughness ranges from 0.5 to 1.0 μm, the effect of surface residual stress on fatigue life is more than that of surface roughness. When the surface residual compressive stress increases, the fatigue life improves significantly. Compared with 60 m/min, when cutting speed is 100 or 140 m/min, the surface roughness decreases, the surface residual compressive stress increases, and the fatigue life improves by 124 and 59%, respectively. Under a tensile load, fatigue crack on machined surface of Ti-10V-2Fe-3Al titanium alloy originates at the cross-edge of the specimen surface. With the increase of surface roughness, the area ratio of fatigue crack propagation zone, and fatigue fracture zone decreases.
KW - Fatigue fracture
KW - Fatigue life
KW - High-speed milling
KW - Surface integrity
KW - Ti-10V-2Fe-3Al titanium alloy
UR - http://www.scopus.com/inward/record.url?scp=84894903255&partnerID=8YFLogxK
U2 - 10.1007/s11668-013-9772-4
DO - 10.1007/s11668-013-9772-4
M3 - 文献综述
AN - SCOPUS:84894903255
SN - 1547-7029
VL - 14
SP - 102
EP - 112
JO - Journal of Failure Analysis and Prevention
JF - Journal of Failure Analysis and Prevention
IS - 1
ER -