TY - JOUR
T1 - Surface integrity evolution and fatigue evaluation after milling mode, shot-peening and polishing mode for TB6 titanium alloy
AU - Yao, Changfeng
AU - Wu, Daoxia
AU - Ma, Lufei
AU - Tan, Liang
AU - Zhou, Zheng
AU - Zhang, Jiyin
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/11/30
Y1 - 2016/11/30
N2 - Surface integrity is closely related to the service life of parts and components. Effects of four kinds of integration processes on surface integrity and fatigue life are studied. These four integration processes are M (milling), MP (milling and polishing), MPS (milling, polishing and shot-peening), and MPSP (milling, polishing, shot-peening and polishing). When roughness, micro-hardness, residual stress, micro-structure and fatigue were considered after the four integration processes, research results show that MPSP process can obtain the best surface topography and roughness, micro-hardness, and residual stress field distribution; MPSP process has the longest fatigue life, and the fatigue life of MPSP process is about 68 times of M process, 56 times of MP process, and 48 times of MPS process; The fatigue fracture of the specimen after MPSP process is flat, and the depth of the crack initiation site for MPSP specimen is approximately 150 μm below the surface.
AB - Surface integrity is closely related to the service life of parts and components. Effects of four kinds of integration processes on surface integrity and fatigue life are studied. These four integration processes are M (milling), MP (milling and polishing), MPS (milling, polishing and shot-peening), and MPSP (milling, polishing, shot-peening and polishing). When roughness, micro-hardness, residual stress, micro-structure and fatigue were considered after the four integration processes, research results show that MPSP process can obtain the best surface topography and roughness, micro-hardness, and residual stress field distribution; MPSP process has the longest fatigue life, and the fatigue life of MPSP process is about 68 times of M process, 56 times of MP process, and 48 times of MPS process; The fatigue fracture of the specimen after MPSP process is flat, and the depth of the crack initiation site for MPSP specimen is approximately 150 μm below the surface.
KW - Fatigue life
KW - Shot-peening
KW - Surface integrity
KW - TB6 titanium alloy
UR - https://www.scopus.com/pages/publications/84989816212
U2 - 10.1016/j.apsusc.2016.06.162
DO - 10.1016/j.apsusc.2016.06.162
M3 - 文章
AN - SCOPUS:84989816212
SN - 0169-4332
VL - 387
SP - 1257
EP - 1264
JO - Applied Surface Science
JF - Applied Surface Science
ER -