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Study on Dominant Roles of Damage Mechanisms of Iron Target during Single-Particle Impingement under Varying Low Impact Angles
Abstract:
For the single-particle erosion of an iron target under low impact angles, normal impact mechanism and tangential cutting mechanism operate through a synergistic interaction yet also compete with each other, each demonstrating distinct emphases. Their relative roles under varying low-incidence angles are worth studying. In this paper, physical experiments of single-particle erosion are conducted on an iron target by impingement of an Al2O3 particle at an impact velocity of 120 m/s and impact angles of 30, 20 and 10 degrees. Results show that tangential cutting dominates the penetration stage for three degree cases. However, normal impact also plays a relatively important role during the penetration stage at 30º. Normal impact dominates the critical stage between penetration and rebound for all three low incident angles, but its influence is weaker at 20º and 10º compared to 30º. Normal impact dominates the rebound stage at 30º, while tangential cutting dominates the rebound stage at both 20º and 10º. Additionally, the influence of normal impact is more pronounced at 20º than at 10º during the rebound stage.
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73-79
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May 2026
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© 2026 Trans Tech Publications Ltd. All Rights Reserved
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