Category Archives: Materials testing laboratory

MEE Intern Updates

posted October 2020

Reid Schur

Congratulations to former MEE intern, Reid Schur, on the publication of his paper Fractographic Analysis of Additvely Manufactured Ti6A14V by Electron Beam Melting: Effects of Powder Reuse in the June 2020 issue of the Journal of Failure Analysis and Prevention.
Reid was a senior in Mechanical Engineering at Washington University in St Louis when he interned with us in 2016. Currently he is a PhD candidate in the University of Washington Materials Science and Engineering Program.

Atte Kadoma

And, congratulations to 2017 MEE summer intern Atte Kadoma as she pursues her PhD in Engineering Sciences at Harvard John A. Paulson School of Engineering and Applied Sciences.  We first met Atte as a high school student in 2014 when she attended ASM Materials Camp. She kept in touch with us while attending Iowa State University where as a student in the Materials Science program she won a Goldwater Scholarship, the nation’s premier undergraduate scholarship in mathematics, natural sciences and engineering.


We always enjoy following the career paths of our summer interns especially when we see the paths have lead them to Materials Science Engineering research.

Sample preparation of steel tanks.


Sometimes projects involve samples or artifacts too large or too valuable to remove or cut for evaluation in MEE’s laboratories. In these cases, in situ evaluation is required.

For this project, MEE was asked to evaluate the functional integrity of large steel tanks that had been exposed to elevated temperatures from a fire. Associate Engineer, Henry Ahrenholtz, is seen here preparing a field metallographic specimen. The tank surface was prepared by grinding, polishing and chemical etching to reveal the microstructure of the tank material. A replica of the prepared surface was made and then examined using a portable microscope. A Materials Engineer’s specialized knowledge of the material properties and behavior under certain environmental conditions combined with metallographic expertise in the field provided valuable information for the client to aid in assessing any damage to the tanks caused by fire.



MEE staff, Larry Hanke, Dieter Scholz and Dan Grice recently presented webinars for ASM International. Both webinars are now available to view for free from the ASM International website. You will need to fill out a registration form before being directed to the webinar.

Advance Specimen Preparation for Metallography

Fractography and Fracture Analysis: History and Development

A few comments from attendees of the Fractography and Fracture Analysis Webinar:

“A great overview of historic fractures. Well worth my attendance.”

“Please convey my sincere Congratulations to Dan & Larry for their superb professional presentation

“Highly systematic historical information regarding Fracture Analysis. Excellent user-friendly Presentation. Job Well Done”

Larry Hanke P.E. in 1995 at the JEOL5800. Image from the Fractography and Fracture Analysis: History and Development webinar.



Join MEE Engineers Dan Grice, P.E. and Larry Hanke P.E. next Tuesday, July 28th, for an ASM International webinar discussing the history of fractography and fracture analysis. Register today!

The study of fractures over the years has had an important role in materials engineering to improve product performance and reliability. This presentation will review the history of fractography, including the historical development of the science, changes in the analytical tools, and some historical case histories showing how fractography has been used over the past 100 years.

Dan Grice, P.E. and Larry Hanke, P.E.


Dan Grice, P.E.

Dan Grice, P.E.


MEE Senior Materials Engineer, Dan Grice P.E., was awarded the 2020 ASM International Bronze Medal.  Established in 2014, the honor of Bronze Medal of the Society recognizes ASM members who are in early-career positions, typically, 0 to 10 years of experience, for their significant contributions in the field of materials science & engineering through technical content and service to ASM and the materials science profession.  Grice was recognized “For enduring contributions to ASM International through the Emerging Professionals Committee and the Failure Analysis Society, and the enthusiastic promulgation of materials engineering technology.”

Congratulations Dan!

Metallography Webinar

posted June 2020

Join MEE Senior Scientist Dieter Scholz and Principal Engineer Larry Hanke for a webinar titled “Advanced Specimen Preparation for Metallography” on July 7th at 1:00 PM CDT. The webinar, hosted by , will cover tripod polishers, target sectioning tools, and broad beam ion milling.

For more details and to register for the webinar: 

Materials Evaluation and Engineering Inc.

Larry Hanke, P.E.

Materials Evaluation and Engineering, Inc.

Dieter Scholz

MEE provided a virtual 90 minute laboratory course on materials characterization and fracture analysis for students in the Materials Science and Engineering program at the University of St Thomas.  For the past six years, we have hosted the students in our lab for this coursework but current recommendations for physical distancing  required us to created an interactive classroom experience using a videoconferencing service and screen sharing technology.

In the images below, you can see staff engineer Neal Hanke  using a USB digital microscope camera to share visual examinations of fracture features and corrosion morphology on a variety of samples.  Hanke also used live online screen sharing of SEM and EDS imaging to instruct students in the use of these imaging tools and techniques in identifying and characterizing materials. Although we miss the experience of having the students in our laboratory we are pleased that we could facilitate live, remote instruction and analyses.

Virtual lab examination of fracture samples with Neal Hanke in MEE SEM Lab


Materials Science students participating in online classroom. With Neal Hanke P.E. and St Thomas Engineering Professor, Genevieve Gagnon, PhD.

Peer review is a trusted process for maintaining the high standards of a scientific profession. The professional engineers at MEE are dedicated to the advancement of scientific knowledge in their field by their active involvement in the peer review process of technical publications.

Ryan Haase is an associate editor for the Journal of Failure Analysis and Prevention (JFAP) and Larry Hanke is on the editorial board of the Metallography, Microstructure and Analysis Journal. Larry, Ryan, Dan Grice and Neal Hanke have all been peer reviewers for these journals.

Larry, Ryan and Dan are also writing content for the ASM Handbooks on Failure Analysis and Fractography with Neal assisting in peer reviews.

JFAPASM HandbookMMA Journal

MEE fully supports and appreciates the time the staff puts in to writing and reviewing technical articles. Their work benefits the materials engineering profession as well as their own professional knowledge of the latest scientific research.

SEM Teleconferencing

posted April 2020

MEE is committed to providing our clients with the required microscopy resources during the COVID-19 Pandemic. The MEE staff knows microscopy, but sometimes a client’s knowledge about the sample and examination objectives is required to conduct an efficient microscopy session. Traditionally, our clients have come into the laboratory to communicate face-to-face with the microscopist, such as during a scanning electron microscopy session. Since social distancing is currently being practiced, MEE is conducting client-guided microscopy sessions via an online video conference platform with audio communication between the operator and the client. laboratory microscopy electronmicroscopy platform materialscience With online sharing of the live image from the microscope, clients and microscope operators are able to work together without the risk associated with face-to-face interactions. Clients can communicate directions to the microscope operator either verbally or with the use of screen annotation tools. During each session, the images collected will be simultaneously synced to a secure online location. Clients will have immediate access to the high quality microscope images. Please contact us if you would like to schedule a microscope teleconference.

MEE Remote SEM Teleconference

Remote Directed SEM Session

MEE’s Response to Covoid 19

posted March 2020

The Covoid-19 pandemic has created an unprecedented disruption to everyone’s sense of normal.Throughout the past few weeks, we have been continuously monitoring the news and CDC recommendations for protecting the health and safety of our staff and any visitors to the facility.We remain open at this time with strict cleaning and safety measures implemented at our facility following CDC and MN Department of Health guidelines. Engineers have been working from home when possible, and laboratory staff are on staggered shifts to maintain social distancing while in the facility. Our commitment to providing the highest quality professional services to our clients has not changed. We are available to assist you with your product issues and concerns. If you have questions, do not hesitate to contact us.