A novel method for preparing and testing bending specimens in-situ the TEM has been developed. This method provides high visibility of the crack front and its associated plastic zone. This is significant because energy release rates can now be calculated at many points throughout the test based on crack tip opening displacement (CTOD), crack opening angle (COA), and crack advance. Further refin...

In the present investigation, wire arc additive manufacturing of Inconel 625 was carried out with cold metal transfer variant inert gas process. The heat input varied between 0.46 and 0.63 kJ/mm, which is a rather low deposition rate. built walls were subjected to Charpy V crack tip opening displacement (CTOD) fracture toughness testing, in addition microstructure examination light microscope s...

As an emerging type of spatio-temporal big data based on positioning technology and navigation devices, vehicle-based crowdsourcing has become a valuable trajectory resource. However, been collected by non-professionals with multiple measurement terminals, resulting in certain errors collection. In these cases, to minimize the impact outliers obtain relatively accurate data, it is crucial detec...