Paul Calhoun – Heat Treat Today 40 Under 40

Name: Paul Calhoun
Company: Mercury Marine
Position: Heat Treat Materials Engineer
In-House Heat Treater
Years in Industry: 11
Paul Calhoun is an engineering professional with over a decade of experience in the industry — specifically in the automotive, aviation, aerospace, and defense industries. This decade of experience has given Paul excellent skills in steel, nickel, titanium, and aluminum metallurgy.

While earning his bachelor’s degree in Materials Science and Engineering from the University of Wisconsin-Madison, Paul was a research assistant in the John H. Perepezko Research Group, which investigated oxidation and diffusion on pack cementation vapor deposition aluminide coatings on ferritic and austenitic steel substrates.

In 2012, Paul joined ATI Forged Products as a metallurgical engineer, where he developed and maintained processes for aerospace and general industrial forgings and broadened his expertise on titanium, nickel, aluminum, and steel alloy forging and heat treating. Paul began to make use of his management skills in 2018 when he was hired as the quality control manager at Service Heat Treating. There, Paul managed the metallurgical laboratory, maintaining and applying the ISO quality system. At Service, heat treat processes Paul was involved in were batch carburizing, nitriding, nitrocarburizing, carbonitriding, and vacuum heat treating.

Paul was brought to Mercury Marine to run the new, state-of- the-art Low Pressure Carburizing and High Pressure Gas Quench (LPC and HPGQ) system produced by ECM USA, Inc. Currently, Paul oversees Mercury Marine’s heat treat metallurgical laboratory and is responsible for all heat treat product testing.

Nominated by: Mercury Marine


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