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contents
ON THE COVER:
The CALIPRI measurement device
uses three laser lines to scan profiles
and swivels to measure from different
perspectives. The device can be used
to analyze the folded edges of
sheet-metal body parts that form
gaps. Courtesy of NextSense GmbH,
Austria.
www.nextsense.at.
ASM International serves materials professionals, nontechnical personnel, and managers worldwide by providing high-quality materials
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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, March 2014. Copyright © 2014 by ASM International. All rights reserved. Distributed
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35 HTPro The official newsletter of the ASM Heat Treating Society (HTS). This quarterly supplement focuses on heat treating technology, processes, materials, and equipment, along with Heat Treating Society news and initiatives. 49 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 •
MARCH 2014
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15 22 25 28 32DEPARTMENTS
Finding and Removing Inclusions in Magnesium Alloys Abdallah Elsayed, Sophie Lun Sin, and Comondore (Ravi) Ravindran Understanding both the origin and procedures for removing inclusions in magnesium alloys results in castings with enhanced mechanical and corrosion properties. Nondestructive Inspection of Resistance Spot Welds Using Matrix Phased Array Ultrasonic Technology Jeong K. Na Automobile performance and passenger safety both rely on sound welds. A new, high-frequency ultrasonic MPA probe performs nondestructive inspection of these welds, saving time and cost. Laser Beam Texturing for Automotive Metal Forming Applications Todd Daenzer An alternative to traditional surface texturing processes is laser beam texturing, which offers various advantages over other common methods. TECHNICAL SPOTLIGHT Faster, Automatic Identification of Particle Contamination Industries such as automotive, electronics, and medical devices are particularly sensitive to the performance of precision-manufactured parts. METALLURGY LANE The Age of Steel: Part I Charles R. Simcoe The second half of the 19th century set the stage for major U.S. industrial growth, and the Bessemer steelmaking process played a significant role.