Effect of multilayer graphene/nano-Fe 2 O 3 composite additions on dry sliding wear behavior of titanium matrix composit
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ORIGINAL PAPER
Effect of multilayer graphene/nano‑Fe2O3 composite additions on dry sliding wear behavior of titanium matrix composites Huang Xie1 · Yun‑xue Jin1,2 · Mu‑ye Niu1,2 · Ji‑heng Wang1,2 Received: 25 June 2019 / Revised: 15 November 2019 / Accepted: 17 November 2019 / Published online: 30 August 2020 © China Iron and Steel Research Institute Group 2020
Abstract The wear tests of titanium matrix composites (TMCs) at the loads of 50, 100, 120, and 150 N were carried out with an MMW-1 vertical universal friction and wear tester to study the addition of multilayer graphene (MLG)/nano-Fe2O3 composites (0, 0.1, 0.2, 0.3, 0.4, and 0.5 g) on the dry sliding wear behavior of TMCs. TMCs presented a marked variation in wear loss as a function of the amount of MLG/Fe2O3 addition, and a significant decrease in the friction coefficient was obtained, reducing this parameter up to 50%. With the rise and fall of wear loss, TMCs underwent a transition from severe wear to mild wear. These phenomena were attributed to the existence of a protective lubricating film, which prevented the surface from coming in direct contact, and the lubricating film was 15–20 μm thick and made up of MLG/Fe2O3 (1:2) nanocomposites. Its structure was speculated to be similar to a rolling wood. Keywords Titanium matrix composite · Graphene · Nanomaterial · Lubricating film · Wear behavior
1 Introduction Graphene, a two-dimensional material discovered in 2004, has been investigated extensively in the recent decade and demonstrates great potential for a wide range of applications [1–4]. Multilayer graphene (MLG), a derivative of graphene, possesses similar properties to graphene, such as super charge carrier mobility, high fracture strength, high Young’s modulus, and extreme thermal conductivity [5–7]. Therein, its tribological properties had been investigated on numerous research works [8–14]. Because of having a high Mohs hardness of 5.5, F e2O3 is usually considered with a good load bearing capacity, which has been reported elsewhere [15–17]. Iwabuchi et al. [18] investigated the effect of Fe2O3 particles on the severe–mild wear transition of a sliding steel interface, and it was confirmed that this transition occurred * Yun‑xue Jin [email protected] 1
School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
National Demonstration Center for Experimental Materials Science and Engineering Education (Jiangsu University of Science and Technology), Zhenjiang 212003, Jiangsu, China
2
when a compacted oxide layer was formed. The formation of load bearing F e2O3-containing tribolayers might be a prerequisite for the wear reduction. Zhou et al. [19] investigated the additions of MLG/Fe2O3 (with mass proportions of 2:1, 1:1, and 1:2) nanocomposite on TC11 alloy, in order to improve the tribological properties, and results showed that MLG/Fe2O3 nanocomposite (1:2) drastically improved the wear resistance of TC11 alloy. Therefore, MLG/Fe2O3 (1:2) nanocomposite was chosen as a
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