A review of biomimetic research for erosion wear resistance
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REVIEW
A review of biomimetic research for erosion wear resistance Feng Sun1 · He Xu1 Received: 3 March 2020 / Accepted: 6 May 2020 © Zhejiang University Press 2020
Abstract One of the reasons behind failed engineering surfaces and mechanical components is particle erosion wear; thus, to mitigate its happening, biomimetic engineering is the current state-of-the-art being applied. Hence, this paper reviews the literature and the development trends on erosive wear resistance that employ biomimetic methods as well as analyze the bio-inspired surface, the bio-inspired structure, the bio-based materials, the associated challenges, and the future trends. Furthermore, the feasibility of the multi-biological and perspective on the coupling biomimetic method for anti-erosion wear are studied. It is concluded that the design of anti-erosion materials or structures by the bio-inspired methods is of great significance in the development of engineering applications. Keywords Erosion wear · Biology to engineering · Biomimetics · Erosion reduction
Introduction Since the 1960s, erosion wear has drawn significant concern [1] by being responsible for many failures in engineering applications. Erosion wear is caused by the dynamic action of solid particles flowing along water or gas [2–4], impacting against the solid surfaces, in turn resulting in repeated deformations [5]. It is quite often observed in the mining operations, oil and gas transportation, to name a few, thus causing serious financial losses [6]. Erosion wear is a complex phenomenon [7–15], depending on erodent particles (size, shape, hardness, concentration), eroded substance (elastic properties, surface hardness, surface morphology), flow condition (impacting velocity, angle, location), and so on. The major factors of erosion wear are summarized in Fig. 1. Erosion rate, penetration depth, load spreading, and stress distribution are the four factors [16–18] backing the investigation of erosive wear. The actual mechanism of erosion being not completely clear [19] restricts the establishment of a simple, reliable, and universally quantitative erosion model. The most common expression of erosion wear is
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He Xu [email protected] Feng Sun [email protected]
1
College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China
based on experimental experience and the erosion rate is usually defined by the mass loss per unit time. It is considered that within a certain limit range of the hardness [20], the erosion wear resistance improves with the hardness of the eroded substance [20–22]. An increase in impact velocity results in a larger peak impact force, whereas the contact time and energy absorption decrease [23]. According to energy conservation, the particle kinetic energy is absorbed by the target surface and transformed into plastic deformation energy, wave stress-energy and residual energy [24]. The eroded substance identifies the role of controlling the motion and energy absorption during the particle impact. In the harsh
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