Jorge Luis Gonzalez Velazquez is a metallurgical engineer and Master of Science from the Instituto Politécnico Nacional (IPN) of Mexico, and Ph.D. from the University of Connecticut in the USA. His postdoctoral research was on environmentally assisted cracking in Japan. Currently, he is a professor and researcher at the Metallurgy and Materials Department of the IPN and director of the Mechanical Integrity Assessment Group, an organization with over 200 researchers and engineers housed at the IPN and with more than 20 years of experience in research and providing fitness-for-service, fracture, fracture mechanics and failure analysis services for the oil and gas industry in Mexico and other countries. He has published several books on fracture mechanics, mechanical metallurgy and pipeline engineering in Spanish.

• The fractographic examination.- Elements of Fractography.- Brittle and ductile fracture.- Fatigue fracture.- Encironmentally assisted fracture.- failure analysis of fractured components.