high chromium cast iron microstructure
high chromium cast iron microstructure
high chromium cast iron microstructure
The effect of quenching temperature on the microstructure and properties (hardness and impact properties) of high chromium cast iron was studied. On this basis, the effects of natural aging on the microstructure of high chromium cast iron and the effects of structural changes caused by natural aging on the macro hardness and micro hardness of high chromium cast iron were further studied.
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It was found that the primary carbides in the hypereutectic high chromium cast iron were all refined to different levels after different modification treatments. Among them, the best result was obtained by adding 0.6 wt % rare earth magnesium, and its average carbide diameters was 43 μm, which is almost half of the unmodified specimen.
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2022. 2. 10. · To improve the wear resistance of the low carbon steel (LCS), high chromium cast iron (HCCI) was embedded into LCS by the hot rolling technique. The macrostructure,
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In the paper, the effect of niobium addition on the microstructure, mechanical properties and wear resistance of high chromium cast iron has been studied.
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Characterization of Microstructure and Mechanical Properties of High Chromium Cast Irons Using SEM and Nanoindentation Abstract. The effects of composition changes and heat treatment on the microstructure and mechanical properties of Introduction. It is well known that the performance of a
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High chromium cast iron (HCCI) has many applications, especially in mining industry, for manufacturing components that require high resistance to abrasive wear.
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2021. 7. 15. · Erosion wear is a common and serious problem in slurry transportation field. In order to improve the erosion wear performance of high chromium cast iron (HCCI), a new type of high chromium cast iron with 0.38% nitrogen (HCCI–N) was fabricated by vacuum induction positive pressure melting furnace under 0.4 MPa nitrogen partial pressure on the basis of the
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1. High chromium white cast iron has different matrix structures in different treatment states. There are austenite in casting state, pearlite in annealing
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High chromium white irons are ferrous based alloys containing 11–30 wt-% chromium and 1.8–3.6 wt-% carbon, with molybdenum, manganese, copper,
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Microstructure and mechanical properties of a Mo alloyed high chromium cast iron after different heat treatments 1. Introduction. High chromium cast irons (HCCIs) (with 12-30 wt% Cr and 1.8-3.6 wt% C) have been widely used in the 2. Materials and methods. The materials used in this study were
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In the present study, a high chromium cast iron (HCCI) with high content of vanadium (15 wt.%) as the wear resistance layer was fabricated on the medium carbon steel (MCS) substrate by laser cladding process. The effect of high vanadium addition on microstructure, phase, hardness and wear properties of bimetal were investigated.
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High chromium cast irons are widely used as abrasion resistant materials. The mechanical properties and wear resistance of these irons depend on the type,
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2018. 10. 1. · In the present study, 6 wt% Mo was added into high chromium cast iron (HCCI, 16 wt% Cr), and the effects of heat treatment on microstructure and mechanical properties of the
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2021. 4. 9. · High chromium cast iron (HCCI), containing high-volume M 7 C 3-type (M: Fe and Cr) hard carbide formed at a certain Cr/C ratio, are widely used in machinery, metallurgy, mining fields for their good properties of hardness and wear resistance [1–4].However, the severe wear caused by coarse primary carbide restricts their further utilization [5–7].
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In the present work, high chromium cast irons (HCCIs) with different high carbon ferro-chrome (HCFC) content were cladded on a low carbon steel (LCS). The microstructure and mechanical properties
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2021. 7. 15. · High chromium white cast irons are ferrous alloys with chromium contents of 11 to 30 wt% and 1.8 to 3.6 wt% carbon . Elements such as Molybdenum, Nickel Fig. 1a and Fig. 1b
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Keywords – High chromium cast iron, Eutectic carbide, Secondary carbide, Microstructure. 1. INTRODUCTION. High chromium irons can bridge the gap between the.
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Shaping high-chromium cast iron microstructure in order to improve resistance to abrasive wear is oriented at refinement of carbides by increasing the crystallization rate [6] [7] [8], improving
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Chromium is included in these alloys,atlevels from1.4 to4%to ensure that the irons solidify carbidic (i.e., to counteract the graphitizingeffectofnickel). Typical microstructure of class I type A nickel-chromium white cast iron.
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Effect of Si content on the wear resistance of high chromium cast iron was investigated. The result showed that the eutectic carbides were greatly refined
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High Chromium Cast Iron is widely used for parts that require high wear resistance for example the slurry pumps, brick dies, several pieces of mine drilling
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The initial as-cast structure of a high-chromium white iron consisted of primary austenitic dendrites and a eutectic mixture of M7C3/austenite.
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mechanical properties of high Cr white cast iron alloys are Figure 1: High chromium iron microstructures in the as-cast; (a) with austenitic matrix
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high chromium white cast iron alloys, including their classifications, The microstructure of as-cast hypoeutectic composition of HCWCI alloy contains
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To determine the effect of austenite stabilizer element on the microstructure and behaviour of as–cast high Cr white cast iron Fe-21Cr-3Ni-1.7Mo-2.4C,
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The microstructure of high chromium white cast iron after quenching is dominated by carbide and residual austenite. The types of carbides formed are M7C3 (Cr7C3
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As shown in Figure 2, the SEM of 900 ℃ and 950 ℃ high chromium cast iron is shown. The content of eutectic carbide M7C3 in high chromium cast iron was calculated by ippimageproplus software, and the result was 15 vol.%. It can be seen from Figure 2 that after quenching, eutectic carbides are distributed in rod and block shape, and some eutectic carbides M7C3 have holes.
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It was found that the primary carbides in the hypereutectic high chromium cast iron were all refined to different levels after different
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The microstructures of HCCI specimens are examined by using optical microscopy and scanning electron microscopy. The hardness and impact fracture toughness of as-cast and heat treated specimens are measured. The wear tests are assessed by a Type M200 ring-on block wear tester.
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2022. 9. 8. · 1.Introduction. High-chromium cast iron (HCCI) is recognized as an excellent wear-resistant material in the world, and is widely used in mining, refractory materials, shot blasting
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Xiao, Effect of heat treatment on microstructure and mechanical properties of a Ti-bearing hypereutectic high chromium white cast iron, Mater. Sci. Eng. A 487 (
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