Effect of cerium addition on microstructure and mechanical properties of as-cast high grade knives steel

Qiao, Xiya; Xiao, Han; Zhuang, Zhen W.; Yang, Xiulun; Mao, Feixiong

doi:10.1007/s42243-022-00798-0

Cited by 14 publications

(4 citation statements)

References 24 publications

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“…The properties of cobalt‐chromium‐iron‐manganese‐nickel alloy have been widely studied, including microstructural and texture evolution, work hardening mechanism, and wear and fatigue resistance [8–13]. The published studies have highlighted that the deformation twins play a critical role in improving the work hardening capacity and retarding crack propagation [14, 15].…”

Section: Introductionmentioning

confidence: 99%

The effect of carbon addition on the mechanical properties and fracture behaviors of cobalt‐chromium‐iron‐ manganese‐nickel high entropy alloy

Leng,

Yang,

et al. 2024

Materialwissenschaft Werkst

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The uniaxial tensile and cupping tests of cobalt‐chromium‐iron‐manganese‐nickel high entropy alloy were performed to investigate the effect of solid soluted carbon addition on the strengthening mechanism. The results revealed that at 0.5 at % carbon, the tensile strength, uniform elongation, and cupping strength of the sample were promoted. However, the brittleness fracture appeared by further increasing carbon to 1.0 at %, as caused by the carbides along grain boundary.

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Section: Introductionmentioning

confidence: 99%

The effect of carbon addition on the mechanical properties and fracture behaviors of cobalt‐chromium‐iron‐ manganese‐nickel high entropy alloy

Leng,

Yang,

et al. 2024

Materialwissenschaft Werkst

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“…Scholars have discovered that adding an appropriate amount of rare earth elements (La and Ce) to steel can improve the corrosion resistance and wear resistance of structural steel, as well as extend its life cycle. Existing research can fully explain the benefits of incorporating rare earth elements [1][2][3][4][5][6][7]. However, recent research has revealed that the alloying process of rare earth elements, as well as the problem of nozzle clogging in rare earth steel, are still significant issues that impede the efficient utilization of rare earth elements.…”

Section: Introductionmentioning

confidence: 99%

Study on the formation mechanism of clogging layer of rare earth microalloyed Q355 steel’s submerged entry nozzle and process optimization

Zhao

Zhi

et al. 2023

Ironmaking & Steelmaking

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The formation mechanism of the clogging layer of the alumina-carbon submerged entry nozzle in the smelting process of rare earth Q355 steel was investigated in this paper. First, the inclusions in the molten steel were discovered to be primarily composed of CaAl 2 O 4 , MgO, CaS, and CeAlO 3 . The mass fraction of solid inclusions increases as the rare earth content increases, and the proportion of inclusions, primarily CaAl 2 O 4 , changes. Calcium titanate and cerium aluminate formation can be inhibited by high [Ca] content. XRD and scanning electron microscopy were then used to examine the phase composition and morphology of the inner and outer arcs of the clogging nodules. The clogging was found to be divided into three layers: the nozzle matrix, the reaction layer, and the steel layer. Finally, it is concluded that the dissolution of C element in refractory material is the cause of nozzle blockage, and the core cause of nozzle blockage is the deposition of Al 2 O 3 , CaAl 2 O 4 , and rare earth compounds. Meanwhile, solutions to nozzle blockage are provided from the perspectives of top slag optimization, the deoxidization process, the calcium treatment process, and protective pouring.

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“…[13][14][15][16][17] The addition of trace amounts of rare earth elements to steel makes the inclusion finer and denser effectively, improving the toughness, plasticity, and wear resistance of steel. [18][19][20][21] For example, The effect of the addition of Ce on the morphology of Al 2 O 3 inclusions, when added to the steel, was studied in the literature. [13] During solidification, when cerium was added to the steel for 1 min, there were still small amounts of inclusions that were not completely modified, which consisted of an Al 2 O 3 core wrapped in a CeAlO 3 ring.…”

Section: Introductionmentioning

confidence: 99%

Revealing the Role of Cerium on Precipitation Behavior of In Situ TiC Particles and Wear Resistance of High‐Titanium Wear‐Resistant Steels

Zhou

Deng

Wang

et al. 2023

steel research int.

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Compared to conventional martensitic wear‐resistant steels of the same hardness, high‐titanium wear‐resistant steels with in situ TiC particles can significantly improve wear resistance. However, micron‐sized TiC particles will decrease the toughness of high‐titanium wear‐resistant steels. Here, in order to improve wear resistance without reducing impact toughness, we incorporate 0.0025% cerium elements into high‐titanium wear‐resistant steels. Compared with no cerium steel, the steel containing cerium is demonstrating comparable mechanical properties, with the yield strength of 1283 MPa and impact toughness of 35.6 J, and the wear performance of the steel containing cerium is 1.78 times that of the steel with no cerium. The results show that with the addition of cerium the effective grain size of the steel decreases, and yield strength and toughness increase. The addition of cerium can form intermetallic compounds of Ce2O2S, which are used as heterogeneous nuclear particles in TiC to form rare earth composite particles calculated by the 2D mismatch theoretical model of Bramfitt. As the average spacing of the reinforcing phase particles in the steel decreases, the effective grain size of the steel decreases, and the number of reinforcing phase particles increases, the wear resistance of the steel with the addition of cerium is optimized.

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Effect of cerium addition on microstructure and mechanical properties of as-cast high grade knives steel

Cited by 14 publications

References 24 publications

The effect of carbon addition on the mechanical properties and fracture behaviors of cobalt‐chromium‐iron‐ manganese‐nickel high entropy alloy

The effect of carbon addition on the mechanical properties and fracture behaviors of cobalt‐chromium‐iron‐ manganese‐nickel high entropy alloy

Study on the formation mechanism of clogging layer of rare earth microalloyed Q355 steel’s submerged entry nozzle and process optimization

Revealing the Role of Cerium on Precipitation Behavior of In Situ TiC Particles and Wear Resistance of High‐Titanium Wear‐Resistant Steels

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