Calos, A Step Towards Designing Fe-Cr-B-C Cast Alloys, Mater. Zou, Effect of Nano-additives on Microstructure, Mechanical Properties and Wear Behaviour of Fe-Cr-B Hardfacing Alloy, Appl Surf Sci, 2016, 360, p 849–857 Rajam, Corrosion- and Wear-Resistant Properties of Ni–Al 2O 3 Composite Coatings Containing Various Forms of Alumina, J Appl Electrochem, 2011, 41, p 461–468 Nickel, Corrosion of Silicon Nitride in Aqueous Acidic Solutions: Penetration Monitoring, J Eur Ceram Soc., 2003, 23, p 595–602 The results of worn surface analysis showed that the wear failure of as-cast Fe-Cr-B alloy was mainly caused by multiple plastic deformation and micro-cutting.ī. When the chromium content was 12 wt.%, the hardness of alloy reached the highest value of 61.1 HRC, and the wear resistance of alloy was the best. With the increase in chromium content, the matrix of as-cast Fe-Cr-B alloy gradually began to transform from pearlite and ferrite to lath martensite, and the type of borocarbides changed from Fe 2(B, C) to M 2(B, C), M 7(C, B) 3 and M 23(C, B) 6 (M = Fe, Cr). ![]() The results showed that the microstructures of chromium-free alloy were mainly composed of pearlite, ferrite, and eutectic borocarbides, and the hardness was very low, only 18.8 HRC. The effects of chromium content on microstructure, hardness and wear resistance of as-cast Fe-xCr-1.0B ( x = 0, 4, 8, 12, 16, 20) alloys were investigated by means of optical microscope (OM), scanning electron microscope (SEM), x-ray diffractometer (XRD), hardness tester and ring block wear tester.
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