Environment-Sensitive-Fracture of High-Strength Aluminum Alloys
Henry Holroyd, Senior Vice President, Luxfer, Inc.
Friday, November 7, 2014
Schwada Classroom Office Building (SCOB) 250, Tempe campus
Despite environmental-sensitive-fracture of high-strength aluminum alloys having led to failures for almost a century, our understanding of the phenomena remains incomplete. To compound this knowledge-gap, recently published information from 3-D imaging techniques suggest a need to revise aspects of currently accepted mechanistic proposals. Following an overview of today’s generally accepted positions, Henry Holroyd will explore and discuss some opportunities to improve our understanding of the phenomena.
Henry Holroyd was educated at University of Newcastle-upon-Tyne, UK, B.Sc in Chemistry/Metallurgy J.Hons (1972), PhD in Engineering (1977). Following 12 years of research in field of environmental-sensitive-fracture at the University of Newcastle-upon-Tyne. He moved in 1981 to Alcan International Research Laboratories, Banbury, broadening his research interests to include fracture, backward extrusion and pressure vessel technology for high-pressure gas containment.
In 1995 Holroyd moved to Riverside, California as Luxfer Gas Cylinders, senior vice president with global responsibilities for technology and innovation, while retaining positions as an adjunct professor at Case Western Reserve University, Ohio (1993–ongoing) and visiting professor at Newcastle University, UK (1999–2005) and University of Central England in Birmingham, UK (1994–1997) to continue research collaborations. In 2008 created more time for his research work by becoming a self-employed retained principal scientist with Luxfer Gas Cylinders.
He has published well over 100 papers and is the first named inventor on seven globally granted patents involving aluminum alloy metal-spray coatings, aluminum welding and pressure vessel technology (high-strength aluminum alloys, autofrettage, co-extrusion, pressure regulation and surface treatment for gas stability). He is also a Ph.D. examiner in the United Kingdom, America and Australia, and has successfully supervised over 25 doctoral and master’s students.