Surface integrity in metal machining - Part II: Functional performance

Material removal operations play a pivotal role in the manufacture of key components, required for engineering systems to operate safely and efficiently under ever more advanced functional requirements over extended life cycles. To further step up loading capability machined parts, fundamental understanding how machining-induced features can influence performance materials complex service conditions is necessary finer temporal spatial scales. As discussed Part I this review, when surfaces are generated by material processes, wide range physical mechanisms (e.g. mechanical, thermal, chemical their combinations) drive characteristics workpiece surface integrity. In II interplay between metallurgical micro-mechanical condition induced processes in-service response will be thoroughly explored, critical analysis state-of-the-art field. Specifically, attention focused on recent advances made towards determining resistance fatigue crack nucleation (Section 2), corrosion stress-corrosion cracking 3), wear 4). Furthermore, impact relevant post-machining treatments behaviour analysed, possible strategies enhancement presented 5). Finally, current research gaps prospective challenges critically discussed, providing an interpretation directions future scientific development