PITTSBURGH (AP) — Thirty years of watching metal fail, often spectacularly, and Mehrooz Zamanzadeh has developed some go-to mantras."Mother Nature doesn't like what she didn't make," he likes to say.That means when a man-made object is exposed to the environment — say, a metal pipeline is buried in soil — that environment will begin tugging and pulling, trying to break the metal into its natural parts, to undo the decades of technological advances at steel [...]
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