Date:

2025-04-30

Title of Paper:

Surface ripple and erosion rate of stainless steel under elevated temperature erosion by angular solid particles

Journal:

Proc. IMechE Part J: Journal of Engineering Tribology

Summary:

The actual industrial erosion caused by the impingement of particles swarming from different perspectives is often
different from the single-angle impingement of solid particle in the erosion test. In order to predict the erosion problems
in practical engineering more reasonably, a series of elevated temperature erosion tests were conducted to study the
surface ripple and enduring erosion behavior of heat-resistance stainless steel suffering from the single-angle impingement
or multiangle alternative impingement of angular particles. The test results indicated that the surface of target
materials with good ductility produced large-scaled transverse ripples and small-scaled longitudinal ripples after experienced
a long-time single-angle impingement of angular solid particles under a 773–873-K high-temperature environment.
The longitudinal ripples could accelerate the emergence and development of large-scaled transverse ripples. Initial
erosion scars caused the differentiation of material deformability and plastic flow in the different locations of concave–convex
scars, which further drove the evolution of the surface morphology from disordered scars to coherent
ripples under the sustained attack of high-velocity particles. The more dimples the eroded surface of target material
produced, it was easier for the target materials to produce coherent ripple. However, the interactions among the
erosion behaviors with different attack angles made initial concave–convex scars difficult to evolve to coherent ripples
under the multiangle alternative erosion. Further statistical results of erosion tests indicated that it can basically satisfy
the practical engineering need by taking the erosion rate of initial surface layer as the erosion rate of the target material
within the whole life cycle.

Co-author:

王顺森，蔡柳溪，毛靖儒，刘观伟，邸娟

Volume:

2/228

Page Number:

187-197

Translation or Not:

No

Date of Publication:

2013-07-29