A microscopic image of 3D-printed 17-4 stainless steel. The colors in the left-side version of the image represent the differing orientations of crystals within the alloy. 

For airliners, cargo ships, nuclear power plants and other critical technologies, strength and durability are essential. Therefore, many contain a remarkably strong and corrosion-resistant alloy called 17-4 precipitation hardening (PH) stainless steel. A team of researchers from the National Institute of Standards and Technology (NIST), the University of Wisconsin-Madison and Argonne National Laboratory has identified particular 17-4 steel compositions that, when printed, match the properties of the conventionally manufactured version. The researchers’ strategy is based on high-speed data about the printing process they obtained using high-energy X-rays from a particle accelerator. 

The 2022 Metal AM Outstanding Technical Paper Award has been selected, and this year's winning paper is "Microstructure and Mechanical Properties of FSLA Steel Produced by the Binder Jet Process” by Chris Schade, Tom Murphy, and Kerri Horvay, Hoeganaes Corporation. The paper was selected from among the highly qualified manuscripts that were presented at the AMPM2022 conference in Portland and critically evaluated for the prestigious award.

LIFT, the Detroit, Michigan-based Department of Defense manufacturing innovation institute, along with the Department of Defense (DOD), have launched two projects led by Boeing as part of the ongoing Hypersonics Challenge led by the institute, focusing on powder metallurgy refractory metal matrix composites and in-situ monitoring development for hypersonic systems.

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The 2022 Howard I. Sanderow Outstanding Technical Paper Award has been selected, and this year's winning paper is "Joining of Two-Piece Aluminum Metal Matrix Composite (Al-MMC) Transmission Carrier via Friction Stir Welding” by Logan Smith and Ian Donaldson, GKN Sinter Metals. The paper was selected from among the highly qualified manuscripts that were presented at the PowderMet2022 conference in Portland and critically evaluated for the prestigious award.