Episode 88: Investigating Metals and Materials

Technology Today

Southwest Research Institute

Technology

4.8 • 19 Ratings

🗓️ 23 February 2026

⏱️ 36 minutes

🔗️ Recording | iTunes | RSS

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Summary

When critical equipment fails, from a chain hoist to an aircraft part, operators want to find out what went wrong. Normal wear and tear, before a failure occurs, can also prompt tests to determine remaining service life for a part or system. A materials science and failure analysis engineer can investigate, digging deep to uncover the root cause of a failure or identify a potential malfunction. This expertise prevents loss of equipment or in extreme cases, loss of life. Listen now as SwRI materials science and failure analysis engineer and metallurgist Dr. Mirella Vargas discusses what is revealed during a thorough analysis, down to the microstructure of metals and materials.

Transcript

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0:00.0	What happened? When there's a malfunction or failure in anything from electronics to aircraft,
0:06.5	a materials and failure analysis expert can get to the root cause and answer that question.
0:12.6	Finding and correcting the problem can prevent loss of equipment or in extreme cases, loss of life.
0:18.5	An SWRI engineer explains what metals, materials, and coatings can
0:23.9	reveal during critical investigations. That's next on this episode of Technology Today.
0:33.1	We live with technology, science, engineering, and the results of innovative research every day.
0:39.2	Now, let's understand it better.
0:41.0	You're listening to the Technology Today podcast presented by Southwest Research Institute.
0:46.4	From deep sea to deep space, we develop solutions to benefit humankind.
0:51.2	Transcript and photos for this episode and all episodes are available at
0:55.0	podcast.swri.org. Share the podcast and hit that subscribe button on your favorite podcast platform.
1:02.0	Hello and welcome to technology today. I'm Lisa Fenya. Today we're talking to
1:07.0	SWRI materials, science, and failure analysis engineer and metallurgist,
1:13.1	Dr. Mirea Vargas. When equipment fails, she figures out what happened, what went wrong,
1:19.1	going in-depth, checking all components down to the materials, metals, and coatings. In many cases,
1:26.6	this root cause failure analysis holds the key to
1:30.7	preventing a catastrophe. Thank you for joining us, Mirea. It's good to be here, Lisa. Thank you for
1:36.0	inviting me on. So we want to get into your investigations and what you uncover by analyzing
1:42.2	metals and materials in just a moment.
1:45.1	But let's start with understanding this specialized field of metallurgy.
1:50.9	So what is a metallurgist?
1:53.3	A metallurgist is an engineer, an engineer that focuses on very specific critical
	...

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