Wear Testing of Stainless Steels in Hydrogen (U)

Wear Testing of Stainless Steels in Hydrogen - Effects of Coating and Pre-Charge (U)

“…Material loss due to wear was determined by (1) weighing the specimens (disks and pins) before and after the test; and (2) by tracing the specimen surface roughness across the wear region with a profilometer for both Phase I and Phase II campaigns. Testing was performed for all Phase II samples with a nominal travel distance of 2000 m and a unidirectional disk linear speed at nominally 800 mm/sec.…”

“…To maintain the same surface finishing of the specimens as previously tested in the Phase I study [1], the same commercial fabrication vendor was used and the same fabrication instructions were provided. Typical as-finished sample disk and pin can be seen in Figure 4.…”