Effect of Warm Compaction and Lubricant on Microstructure and Properties of Iron-Based Alloy
Source abstract
Abstract
Lubricant plays an important role in warm compaction technology. This paper investigates the effects of the warm compaction parameters and the lubrication properties of a compound lubricant (polyoxyethylene/bispolyether amide/polyamide) on the microstructure and properties of iron-based powder metallurgy materials. The results showed that the density of the sample containing the compound lubricant was higher than that of the sample containing zinc stearate by 0.1 g/cm3. With the increase in compaction temperature, the density, bending strength, and dimensional deformation increased and then decreased. The effect of additive amount on performance showed a similar trend. The increase of polyoxyethylene content in the compound lubricant was beneficial to reduce the optimum temperature, but excess polyoxyethylene had an adverse effect on lubrication performance due to fewer functional groups. The optimal parameters of the compound lubricant were a doping ratio of 1:2:2 (polyoxyethylene/dioleic acid amide/polyamide), a lubricant concentration of 0.5%, and a compaction temperature of 140 °C. Under the optimized process parameters, the viscous lubricant could be uniformly distributed in the mixing fraction, and the friction force was reduced to the greatest extent.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Powder Metallurgy Techniques and Materials · Advanced materials and composites · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
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