Meet the Staff - Randall Moye

This week we will be introducing EPI Materials Testing Group's Lab supervisor, Randall Moye. Randall has worked for EPI Materials Testing Group for over 6 years, but has about 15 years experience in the testing and analysis industry.

Randall is a military veteren and knows how to keep the lab running on all cylinders. Along with making sure work is getting done right in our lab, he also runs many of EPI MTG's analyses including our X-ray diffraction analysis. This test identifies compounds of crystalline material.

At EPI MTG, Randall oversees our entire lab and is one of the main reasons why EPI MTG has been expanding its clientele and production since he was hired on. He is another valued person that makes EPI MTG one of the best testing and analysis labs in the world.

Micro-photography

The picture above shows the grain structure of Direct Sintered Silicon Carbide at 500x. One of many intresting grain structures EPI Materials Testing group sees everyday.

Want to see something we do? Have a question about something? Let us know in the comments and we will give you an answer or even write about it!

B611 Wear Testing

EPI Materials Testing group does custom wear testing and three standardized wear tests for their clients, ASTM G65, G105, and B611.

The B611 test is an ASTM 'Standard Test Method for Abrasive Wear Resistance of Cemented Carbides'. The test wheel is made of AISI 1020 steel and has an OD of between 6.5" and 6.65".

The B611 test is used mainly for what it is intended, Cemented Carbides. It is also used as a research method to test the differences between different carbide compositions. This test runs in a slurry mixture making it very abrasive as compared to the G65 testing.

Along with these test we have talked about for the last few weeks EPI Materials Testing also does custom testing for clients who are doing research and development of new and older carbides.

If you have any questions regarding wear testing visit our website or leave us a comment.

Meet the Staff - Darrell Childers

This week we will be introducing the old man who has done it all for EPI MTG, Darrell Childers. Darrell has worked for EPI Materials Testing Group for about 8 years, but has almost 20 years experience in the forensic analysis background.

During those years, he has been the man who will do anything that was needed of him. He has gathered forensic evidence on location, processed evidence for analysis in both legal cases and QA/QC matters, machined custom tools and parts for jobs, traveled to incident sites around the country, regularly prepared high quality samples for analysis, and a multitude of other things.

At EPI MTG, Darrell is the senior lab technician specializing in high quality samples for analysis and oversees our other lab technicians.

Darrell has been a tremendous asset to EPI MTG and has always been there to help a client or fellow employee with just about any question. He loves the work he does and EPI MTG's clients can see that in every job he works on.

G65 Wear Testing

EPI Materials Testing group does custom wear testing and three standardized wear tests for their clients, ASTM G65, G105, and B611.

The G65 test is an ASTM 'Standard Test Method for Measuring Abrasion Using the Dry Sand/Rubber Wheel Apparatus'. The test runs using an eight-inch wheel with a half inch of rubber on the OD of the wheel.

The ASTM G65 test includes five different tests, 'Procedure A' through 'Procedure E'. The tests differ by how long the test runs except for 'Procedure D', which uses a different amount of weight applied to the wheel.

This test runs on a variety of different materials including plating, hardbanding overlays, hard base materials, and some spray coatings.

(Figure from ASTM G65 spec)

Want to see something we do? Have a question about something?

Let us know in the comments and we will give you an answer or even write about it!