TY - JOUR
T1 - Dependence of Fracture Patterns in Spark Plasma Sintered Irregular Shaped Ti6Al4V Powders on Densification
AU - Adegbenjo, Adewale Oladapo
AU - Nsiah-Baafi, Elsie
AU - Olubambi, Peter Apata
AU - Potgieter, Johannes Herman
AU - Shongwe, Mxolisi Brendon
AU - Ramakokovhu, Mercy
N1 - Publisher Copyright:
© 2016 The Authors
PY - 2017
Y1 - 2017
N2 - The effect of densification on the fracture behaviour of spark plasma sintered irregular and angular shaped prealloyed Ti6Al4V powders was investigated in this study. Sintering was performed in vacuum at constant heating rate, applied pressure and holding time of 100̊C/min, 50 MPa and 5 min respectively with sintering temperature varied between 650 – 850̊C. Density measurements on sintered samples were according to Archimedes’ principle while microstructural evolution and fractographic studies were carried out using a High Resolution Scanning Electron Microscope (HRSEM). Phase identification in sintered samples was achieved by X-ray diffraction (XRD) and Energy Dispersive Spectroscopy (EDS) respectively. Results showed that fracture pattern changed from intergranular to transgranular as densification improved from lower to higher sintering temperature.
AB - The effect of densification on the fracture behaviour of spark plasma sintered irregular and angular shaped prealloyed Ti6Al4V powders was investigated in this study. Sintering was performed in vacuum at constant heating rate, applied pressure and holding time of 100̊C/min, 50 MPa and 5 min respectively with sintering temperature varied between 650 – 850̊C. Density measurements on sintered samples were according to Archimedes’ principle while microstructural evolution and fractographic studies were carried out using a High Resolution Scanning Electron Microscope (HRSEM). Phase identification in sintered samples was achieved by X-ray diffraction (XRD) and Energy Dispersive Spectroscopy (EDS) respectively. Results showed that fracture pattern changed from intergranular to transgranular as densification improved from lower to higher sintering temperature.
KW - Characterization
KW - Densification
KW - Fracture
KW - Sintering
KW - Ti6Al4V alloy
UR - http://www.scopus.com/inward/record.url?scp=85010036636&partnerID=8YFLogxK
U2 - 10.1016/j.promfg.2016.12.079
DO - 10.1016/j.promfg.2016.12.079
M3 - Article
AN - SCOPUS:85010036636
SN - 2351-9789
VL - 7
SP - 567
EP - 572
JO - Procedia Manufacturing
JF - Procedia Manufacturing
ER -