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4 Editorial 6 Research Tracks 7 Machine Learning 8 Metals/Polymers/Ceramics 10 Testing/Characterization 12 Emerging Technology 13 Process Technology 14 Sustainability 46 Stress Relief 47 Editorial Preview 47 Special Advertising Section 47 Advertisers Index 48 3D PrintShop TRENDS INDUSTRY NEWS DEPARTMENTS Check out the Digital Edition online at asminternational.org/news/magazines/am-p ASM International serves materials professionals, nontechnical personnel, and managers wordwide by providing high-quality materials information, education and training, networking opportunities, and professional development resources in cost-effective and user-friendly formats. ASM is where materials users, producers, and manufacturers converge to do business. Advanced Materials & Processes (ISSN 0882-7958, USPS 762080) publishes eight issues per year: January/February, March, April, May/June, July/August, September, October, and 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 Novelty, Ohio, and additional mailing offices. Vol. 180, No. 1, JANUARY/FEBRUARY 2022. Copyright © 2022 by ASM International ® . All rights reserved. Distrib- uted at no charge to ASMmembers in the United States, Canada, and Mexico. International members can pay a $30 per year surcharge to receive printed issues. Subscriptions: $499. Single copies: $54. POSTMASTER: Send 3579 forms to ASM International, Materials Park, OH 44073-0002. Change of address: Request for change should include old address of the subscriber. Missing numbers due to “change of address” cannot be replaced. Claims for nondelivery must be made within 60 days of issue. Canada Post Publications Mail Agreement No. 40732105. Return undeliverable Canadian addresses to: 700 Dowd Ave., Elizabeth, NJ 07201. Printed by Publishers Press Inc., Shepherdsville, Ky. 21 JUDITH A. TODD 2021-2022 PRESIDENT OF ASM INTERNATIONAL Meet Judith A. Todd, FASM, the new president of ASM, and learn about her academic and scientific background, professional service, and contributions as a researcher and educator. 24 DOUBLE HELIX DISCOVERY IMPACTS MATERIALS SYNTHESIS FROM NANOSCALE TO MESOSCALE J. Narayan Pure screw dislocations can become helical by absorbing defects such as vacancies and develop attractive interaction with another helical dislocation to form a double helix structure. 28 TECHNICAL SPOTLIGHT TRACE ELEMENTAL ANALYSIS OF LITHIUM-ION BATTERY MATERIALS The benefits of trace elemental analysis to improve the performance and safety of lithium-ion batteries used in electric vehicles are explored. FEATURES JANUARY/FEBRUARY 2022 | VOL 180 | NO 1 A D V A N C E D M A T E R I A L S & P R O C E S S E S | J A N U A R Y / F E B R U A R Y 2 0 2 2 3 21 31 28 24 31 AEROMAT PROGRAM HIGHLIGHTS AeroMat 2022 features a three-day technical program, keynote sessions, education courses, and exhibits all highlighting innovative aerospace materials and process developments.