Tribological Properties of 316L Stainless Steel Fabricated via Metal Injection Molding

Abstract

The tribological properties of sintered 316L stainless steel fabricated via injection molding were investigated. Tests were carried out at room temperature comparing metal injection molded dog bone tensile samples at different sintering temperatures. The parameter used for the pin on disk test is a 10kN load, 500m sliding distance and a chromium steel ball as a sliding partner. The morphologies and compositions of the worn surfaces were analyzed by SEM, Raman and XPS. The results showed that the wear mechanism and friction coefficient of SS316L depended strongly on the microstructure which was influenced by the sintering temperature.

Characterization of Green Part of Steel from Metal Injection Molding: An Analysis Using Moldflow

“…From the tribology test, stainless steel was known to show optimum properties in density, hardness, and wear rate. Thus, steel via MIM shows a promising future for tribological material [ 19 ]. A series of Vickers hardness measurements was carried out on the samples with polished surfaces under the load of 200 g, with a holding time of 10 s.…”

Tribology Properties of Injection Moulded Co Based Alloy

“…The test method for tribology was run according to ASTM G 99-04 Standard Test Method for Wear Testing with a Pin-on -Disk Apparatus [5]. Immediately prior to testing, and prior to measuring or weighing, specimens were cleaned and dried.…”

“…The specimen was then removed and any loose wear debris was cleaned off. The existence of features on or near the wear scar was noted such as: protrusions, displaced metal, discoloration, micro cracking, or spotting [5]. Then the specimen was reweighed to the nearest 0.001 g. The test was repeated with additional specimens to obtain sufficient data for statistically significant results.…”