Effect of matrix microstructure on the matrix/M2B wear interaction and its quantitative characterization in an Fe-2wt%B alloy

Yi, Yanliang; Li, Qiang; Long, Shaolei; Lv, Zhen; Li, Shuangjian; Liu, Yangzhen; Zheng, Baochao; Li, Wei

doi:10.1016/j.wear.2020.203608

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…The Fe-B alloy possesses high hardness and wear resistance owing to the alloyed borides with improved performances [ 15 ]. Nowdays, the improvement of Fe-B alloy in wear resistance mainly depends on the unique microstructure of Fe-B-C alloy as a new tool steel, and its property can be effectively and well controlled by B and C contents to obtain suitable and desired properties [ 16 , 17 , 18 , 19 , 20 ]. In addition, the researchers found that adding boron can also improve the wear resistance of other alloys such as ductile iron, high-chromium cast iron, and high-strength steels [ 4 , 21 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Silicon Content on Microstructures and Properties of Directionally Solidified Fe-B Alloy

Guo

He²,

Shah

et al. 2022

Materials

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In order to investigate the effect of Si content on the microstructures and properties of directionally solidified (DS) Fe-B alloy, a scanning electron microscope (SEM) with an energy dispersive spectrum (EDS), and X-ray diffraction have been employed to investigate the as-cast microstructures of DS Fe-B alloy. The results show that Si can strongly refine the columnar microstructures of the DS Fe-B alloy, and the columnar grain thickness of the oriented Fe2B is reduced with the increase of Si addition. In addition, Si is mainly distributed in the ferrite matrix, almost does not dissolve in boride, and seems to segregate in the center of the columnar ferrite to cause a strong solid solution strengthening and refinement effect on the matrix, thus raising the microhardness of the matrix and bulk hardness of the DS Fe-B alloy.

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Section: Introductionmentioning

confidence: 99%

Effect of Silicon Content on Microstructures and Properties of Directionally Solidified Fe-B Alloy

Guo

He²,

Shah

et al. 2022

Materials

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“…[ 14 ] Yi et al found that martensite matrix possesses a better abrasive resistance to pearlitic matrix in Fe–B alloy. [ 15 ] It also has been reported that the wear resistance of high vanadium HSSs rises with the increase of the matrix hardness. [ 16 ] In addition, it was found that the solid solution of Cr element into matrix can increase the hardness and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Tempering Temperature on the Microstructure and Wear Properties of Powder Metallurgy High‐Speed Steels

Lyu

Yao

Zhang

et al. 2022

steel research int.

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The influence of tempering temperature on the microstructure of powder metallurgy high-speed steels (PM HSSs) PM20 is investigated by X-ray diffraction, electron backscattering diffraction, and transmission electron microscopy. With the increasing of tempering temperature, the ratio of low angle grain boundaries decreases, while the volume fraction and size of M 6 C and VC carbides increase. The wear resistance of PM20 with different tempering temperatures is studied by reciprocating ball-on-flat methods. The wear properties of PM20 decrease gradually with the increasing of tempering temperature. The variation of wear properties is explained by the characteristic of the martensite matrix, carbides, and the misorientation angle of boundaries. All samples present a complex wear mechanism of abrasive wear and oxidation wear.

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“…Accordingly, the unique microstructures and properties of Fe–B alloys can be easily regulated by wide-range adjustment of the boron and carbon contents to control the hard-phase and anti-corrosive Fe 2 B and the continuously distributed metal matrix, which achieves independent control of the wear-resistant phase and matrix structure. Therefore, this alloy has better hardenability, fracture toughness and wear resistance compared to other iron-based alloys and steels [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. As the primary alloying element, the high-temperature corrosion behaviors of borides have been investigated widely.…”

Section: Introductionmentioning

confidence: 99%

Effects of Boride Orientation and Si Content on High-Temperature Oxidation Resistance of Directionally Solidified Fe–B Alloys

Guo

He²,

et al. 2022

Materials

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In this work, the as-cast directionally solidified (DS) Fe–B alloys with various Si contents and different boride orientation were designed and fabricated, and the as-cast microstructures and static oxidation behaviors of the DS Fe–B alloys were investigated extensively. The as-cast microstructure of the DS Fe–B alloys consists of the well-oriented Fe2B columnar grains and α-Fe, which are strongly refined by Si addition. The oxidation interface of the scales in the DS Fe–B alloy with 3.50 wt.% Si demonstrates an obvious saw-tooth shaped structure and is embedded into the alternating distributed columnar layer structures of the DS Fe–B alloy with oriented Fe2B and α-Fe matrix, which is beneficial to improve the anti-peeling performance of the oxide film compared with lower amounts of Si addition in DS Fe–B alloys with oriented Fe2B [002] orientation parallel to the oxidation direction (i.e., oxidation diffusion direction, labeled as Fe2B// sample). In the DS Fe–B alloys with oriented Fe2B [002] orientation vertical to the oxidation direction (i.e., labeled as Fe2B⊥ sample), due to the blocking and barrier effect of laminated-structure boride, Si is mainly enriched in the lower part of the oxide film to form a dense SiO2 thin layer adhered to layered boride. As a result, the internal SiO2 thin layer plays an obstructed and shielded role in oxidation of the substrate, which hinders the further internal diffusion of oxygen ions and improves the anti-oxidation performance of the Fe2B⊥ sample, making the average anti-oxidation performance better than that of the Fe2B// sample.

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Effect of matrix microstructure on the matrix/M2B wear interaction and its quantitative characterization in an Fe-2wt%B alloy

Cited by 6 publications

References 30 publications

Effect of Silicon Content on Microstructures and Properties of Directionally Solidified Fe-B Alloy

Effect of Silicon Content on Microstructures and Properties of Directionally Solidified Fe-B Alloy

Influence of Tempering Temperature on the Microstructure and Wear Properties of Powder Metallurgy High‐Speed Steels

Effects of Boride Orientation and Si Content on High-Temperature Oxidation Resistance of Directionally Solidified Fe–B Alloys

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