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contents
ON THE COVER:
Large scale transmission Kikuchi
diffraction orientation map showing a
nanocrystalline shear band cutting
across coarse grains in an Al-Mg-Cu
alloy. Scale is 2 µm. Courtesy of the
Australian Centre for Microscopy &
Microanalysis, The University of
Sydney.
www.sydney.edu.au.
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Advanced Materials & Processes
(ISSN 0882-7958, USPS 762080) is publishedmonthly, except bimonthly November/December, by ASM
International, 9639 Kinsman Road, Materials Park, OH 44073-0002; tel: 440/338-5151; fax: 440/338-4634. Periodicals postage paid at Nov-
elty, Ohio, and additional mailing offices. Vol. 172, No. 2, February 2014. Copyright © 2014 by ASM International. All rights reserved. Distributed
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27 International Thermal Spray and Surface Engineering The official newsletter of the ASM Thermal Spray Society (TSS). This quarterly supplement focuses on thermal spray and related surface engineering technologies. 43 ASM News The monthly publication about ASM members, chapters, events, awards, conferences, affiliates, and other Society activities.Check out the
Digital Edition online at
http://amp.digitaledition. asminternational.orgADVANCED MATERIALS & PROCESSES •
FEBRUARY 2014
1
13 16 18 24DEPARTMENTS
Transmission Kikuchi Diffraction in the Scanning Electron Microscope: Orientation Mapping on the Nanoscale Patrick W. Trimby and Julie M. Cairney By changing a setup and using electron transparent samples, hundreds of laboratories worldwide have access to a characterization technique that measures grain sizes and orientations in nanocrystalline materials. JACQUET-LUCAS AWARD Extrusion Welding in a Magnesium Alloy (AM30) Hollow Section Extrudate Nabeel H. Alharthi and Wojciech Z. Misiolek This entry won the prestigious Jacquet-Lucas Award for Best in Show at the 2013 International Metallographic Contest held in conjunction with the M&M 2013 conference in Indianapolis. Additive Manufacturing of Titanium Alloys B. Dutta and F.H. Froes Although the widespread use of titanium alloys is constrained by high costs, powder metallurgy techniques such as additive manufacturing represent an economical approach to fabricating titanium components. METALLURGY LANE Wrought Iron: A Metal for the Ages Charles R. Simcoe Early humans had no knowledge of iron. Unlike gold, silver, and copper, iron does not exist as a native metal. Here we explore the early days of wrought iron production.