The pin-on-disk wear test requires two primary specimens: a pin (or a rigidly held spherical ball) positioned perpendicular to a flat circular disk.
"What?"
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Sarah scrambled through the paper report. "No... they just marked it as 'stable'."
Subject: Root Cause Identified.
"Can we find a copy?" Elias asked.
The test procedure involves:
"I found a scan," Sarah said hesitantly. "A hosted on a university archive in Singapore. It’s an older revision, from 2017, but it might give us the baseline."
Elias froze. "They tested at 10 Newtons?" The pin-on-disk wear test requires two primary specimens:
"Look at the PDF, Sarah. The warning in ASTM G99 regarding high loads on thermally conductive alloys. If you increase the load beyond the standard parameters without active cooling, you generate a flash temperature at the contact point. The wear mechanism changes. It stops being mechanical abrasion and becomes oxidative wear."