Each year, the 40 Under 40 initiative at Heat Treat Today recognizes 40 rising young leaders (ages 40 and younger) in heat treat who are going above and beyond in the industry.
To learn more about what makes someone a quality candidate for this honor, read below to hear from the individuals themselves — alumni of Heat Treat Today’s 40 Under 40 — as they share personal updates and industry insights.
Click this link to nominate yourself, or someone you know, by June 27, 2025.
Larissa Costa

When she was nominated for Heat Treat Today’s 40 Under 40 in 2024, Larissa Costa was a metallurgist with Nucor Steel Brandenburg, she had a PhD, and had already served in her industry for ten years. Now she shares an encouraging update about milestones since her nomination and the role mentorships play in the industry.

“The most exciting milestone I recently reached was developing all the quenching recipes for the continuous heat treatment line at Nucor Steel Brandenburg. Developing the heat treatment process, especially the quenching recipes from scratch in a green steel mill is not something usual. Therefore, having the opportunity of developing recipes for quenching in a continuous line is very rewarding and it was an important milestone for both Nucor Steel Brandenburg and my career itself. At the continuous heat treatment line we heat treat steel plates with grades varying from structural to abrasion resistant, with a large range of thicknesses that varies from 3/16” – 4.”
Sharing about the role mentors played in her success, Larissa said, “Yes, I had some good mentors in my career and they definitely had an impact in how I develop my work. Two things I learned with respect to technical abilities that I use on a daily basis are:
- Make sure that you’re expressing yourself in a way that everyone can understand, independent of their background or technical knowledge.
- Always support your discussions, ideas, plans, and projects by data and technical information.”
When asked what advice she would give to young professionals entering the heat treating industry, she replied: “Keep your mind sharp. Discuss technical aspects with your peers and teammates, explore, investigate, study, review things that you learned, keep yourself updated. Understanding how your material was processed before the heat treatment can be the key to mitigate issues you might face after the heat treatment. The previous steps in production can impact in the mechanical and metallurgical properties, residual stresses, distortion, and consequently the lifetime of your final product.”
Trevor Gibson

Trevor Gibson was a Heat Treat Today 40 Under 40 Class of 2023 honoree. He had been in his field for 11 years, and was the lead materials engineer at Dana Incorporated. Trevor shared more about his recent achievements, and how he has grown over the past five years as a heat treater.
“Recently, I have remained steadily busy. With higher demands for power density through various parts, continuing to educate others in regards to various heat treat and materials has been at the forefront of my responsibilities. I would say that it has driven more creativity in how we look at conventional processes.
“Over the past five years I have gone from a simple engineer to a lead engineer at Dana. I have been working with the global teams in everything from materials selection and design all the way to helping troubleshoot heat treating issues at our various plants globally.”
When asked what the most enjoyable part of heat treating is, Trevor responded, “Definitely the people. There is always someone willing to help out when you have issues. Whether it is from furnace, controls, induction, or commercial heat treaters, you can always message or call people up when you are having an issue, and they are more than willing to take time out of their day to support.”
Heat Treat Today’s 40 Under 40 Authors
Check out some of the technical content that 40 Under 40 alumni have published with Heat Treat Today over the years:
Chad Beamer – 40 Under 40 profile
- Hot Isostatic Pressing: A Seasoned Player With New Technologies In Heat Treatment – Expert Analysis
- Hot Isostatic Pressing For Orthopaedic Implants
- Heat Treating: The Best Medicine
- HIP Innovation Maximizes AM Medical Potential
Michelle Bennett – 40 Under 40 profile
- Heat Treater Vs. Water: Best Practices To Avoid Water Contamination
- Obliterate Quench Contaminates
- “CQI-9 vs. AMS2759 for Quench Oil Management”
Alberto Cantú – 40 Under 40 profile
John Chesna – 40 Under 40 profile
Heather Falcone – 40 Under 40 profile
Humberto Ramos Fernández – 40 Under 40 profile
Brian Flynn – 40 Under 40 profile
- Heat Treat Radio #84: Heat Treat Tomorrow — Digital Security with 4 Industry Experts
Scott Fogle – 40 Under 40 profile
Ben Gasbarre – 40 Under 40 profile
- Effective Integral Quench Furnace Maintenance
- Tech Trends: Heat Treat Technologies to Watch in 2022
- Heat Treat Future with AM and 3D Printing
Josh Hale – 40 Under 40 profile
Mike Harrison – 40 Under 40 profile
Kyle Hummel – 40 Under 40 profile
- Induction Hardening: Understanding the Basics
- Induction Hardening: Strengthening the Automotive Industry into the Future
- The Heart of Heat Treat Today’s 40 Under 40
- Heat Treat Radio #51: Spotlight on 40 Under 40 Leaders (Part 1 of 3)
Caleb Johnson – 40 Under 40 profile
Trevor Jones – 40 Under 40 profile
Brynna Keelin Kelly-McGrath – 40 Under 40 Profile
- Heat Treat Radio #111: Isolated Heat, The Future Of Vacuum Furnaces – Heat Treat Today
Katelyn Kirsch – 40 Under 40 profile
Kelly Peters – 40 Under 40 profile
- Heat Treat Radio #122: Lessons Learned from the Nadcap Certification Journey for Multi-Cell Furnaces
Don Marteeny – 40 Under 40 profile
- Heat Treat Radio #84: Heat Treat Tomorrow — Digital Security with 4 Industry Experts
- Heat Treat Radio #99: 365° Look At Troubleshooting Vacuum Furnace Maintenance Issues
- It’s Time for Another Look at Vacuum Oil Quenching
Jonathan McKay – 40 Under 40 profile
Aniket Maske – 40 Under 40 profile
Ellen Conway Merrill – 40 Under 40 profile
Casey O’Neill – 40 Under 40 Profile
Shawn Orr – 40 Under 40 profile
- Heat Treat E-Commerce: A Growing Trend or a Passing Fad?
- EthernetIP
- Heat Treat Radio #55: Spotlight on 40 Under 40 Leaders (Part 3 of 3)
Alberto Ramirez – 40 Under 40 profile
- 10 Steps To Troubleshoot Your Induction System
- 10 pasos para solucionar las fallas en un equipo de inducción
Mark Rhoa Jr. – 40 Under 40 Profile
Justin Rydzewski – 40 Under 40 profile
- Heat Treat Radio #42: Justin Rydzewski On CQI-9 Rev.4 (Part 1 Of 4) – Pyrometry
- Heat Treat Radio #45: Justin Rydzewski On CQI-9 Rev.4 (Part 2 Of 4) – HTSAs & Job Audits
- Heat Treat Radio #47: Justin Rydzewski And James Hawthorne On CQI-9 Rev.4 (Part 3 Of 4) – Process Tables & New Resources
- Heat Treat Radio #50: Justin Rydzewski and James Hawthorne on CQI-9 Rev.4 (Part 4 Of 4) – Expert Advice
Humberto Torres Sánchez – 40 Under 40 profile
- Regionalization: How It’s Transforming Mexico’s Manufacturing Industry
- Overcoming Challenges And Finding Success In Latin America’s First HIP Batch
- Como Se Logró La Primera Horneada De HIP En Latinoamérica
- Greener Mobility from the Heat Treat Department
Justin Sims – 40 Under 40 profile
- Heat Treat Radio #28: Heat Treat Modeling With Justin Sims
- Fatigue Improvement for Gear Steels in Helicopter Powertrains
- Fatigue Improvement for Gear Steels in Helicopter Powertrains, Phase 2
- Case Study: The Low-Pressure Carburizing Process Improvement for a Ring Gear
- Process Innovation to Reduce Distortion During Gas Quenching
- Testing Underway for Innovative Gas Quenching Unit
Bryan Stern – 40 Under 40 profile
- Vacuum Heat Treating in a Carbon-Conscious Market
- Evolving Efficiency: Advantages of Multi-Chamber Isolated Heat Vacuum Furnaces – Heat Treat Today
- Heat Treat Radio #110: Isolated Heat, the Future of Vacuum Furnaces – Heat Treat Today
Ryan Sybo – 40 Under 40 profile
Josh Tucker – 40 Under 40 Profile
Sasha Tupalo – 40 Under 40 profile
- Heat Treat Radio #98: Heat Treat NextGen Sasha Tupalo
Andy Wilkosz – 40 Under 40 profile
- Heat Treat Radio #11: Laser Heat Treating with Laser Hard
Nic Willis – 40 Under 40 profile
- Heat Treat Radio #96: Making the Leap to Laser Heat Treat with Nic Willis
Ben Witoff – 40 Under 40 profile
Víctor Zacarías – 40 Under 40 profile
- How To Choose the Right Thermocouple in Heat Treatment
- ¿Cómo elegir el termopar correcto en Tratamientos Térmicos?
- Pyrometry: The Standard for Reliable Thermal Processing in Automotive and Aerospace Industries
- Pirometría: la normativa para un Procesamiento Térmico confiable en la Industria Automotriz y Aeroespacial
Erika Zarazúa – 40 Under 40 profile
- Guide To Conducting SATs According to CQI-9 4th Edition
- Guía para conducir pruebas System Accuracy Tests conforme a CQI-9 4ta. Edición