High speed pounding: A novel technique for the preparation of a thick surface layer with a hardness gradient distribution on Hadfield steel

Zhang, F.C.; Yang, Zhinan; Qian, Lihe; Liu, Fengchao; Lv, Bo; Zhang, M.

doi:10.1016/j.scriptamat.2010.11.043

Cited by 21 publications

(15 citation statements)

References 8 publications

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“…Surface mechanical attrition in annealed pure titanium, TWIP steel and a NiTi SMA produced a maximum hardness of 3.8, 4, and 6 GPa respectively [ 4 , 5 , 6 ]. In Hadfield steel, shot peening has achieved a maximum hardness of 7.7 GPa [ 54 ] and high-speed pounding achieves 8 GPa [ 9 ]. In most of these examples, the materials are hardened either by twinning or by martensite formation.…”

Section: Discussionmentioning

confidence: 99%

“…In analogy with the well-known shot peening treatment, the goal is to increase surface hardness and induce compressive residual stresses to inhibit fatigue crack initiation while maintaining a tough microstructure in the core of the treated part. This is achieved in processes such as Surface mechanical attrition [ 4 , 5 , 6 ], large strain machining [ 7 ], ultrasonic surface modification [ 8 ], high-speed pounding [ 9 , 10 ] or sliding contact modification [ 11 , 12 ]. The coaxial configuration proposed by Figueroa et al [ 13 ] for the analysis of adhesive wear induces significant surface modification as well and was, independently, modified as Surface Spinning Strengthening by Ren et al [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Surface Nanostructuring of a CuAlBe Shape Memory Alloy Produces a 10.3 ± 0.6 GPa Nanohardness Martensite Microstructure

et al. 2020

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Severe plastic deformation (SPD) has led to the discovery of ever stronger materials, either by bulk modification or by surface deformation under sliding contact. These processes increase the strength of an alloy through the transformation of the deformation substructure into submicrometric grains or twins. Here, surface SPD was induced by plastic deformation under frictional contact with a spherical tool in a hot rolled CuAlBe-shape memory alloy. This created a microstructure consisting of a few course martensite variants and ultrafine intersecting bands of secondary martensite and/or austenite, increasing the nanohardness of hot-rolled material from 2.6 to 10.3 GPa. In as-cast material the increase was from 2.4 to 5 GPa. The friction coefficient and surface damage were significantly higher in the hot rolled condition. Metallographic evidence showed that hot rolling was not followed by recrystallisation. This means that a remaining dislocation substructure can lock the martensite and impedes back-transformation to austenite. In the as-cast material, a very fine but softer austenite microstructure was found. The observed difference in properties provides an opportunity to fine-tune the process either for optimal wear resistance or for maximum surface hardness. The modified hot-rolled material possesses the highest hardness obtained to date in nanostructured non-ferrous alloys.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surface Nanostructuring of a CuAlBe Shape Memory Alloy Produces a 10.3 ± 0.6 GPa Nanohardness Martensite Microstructure

et al. 2020

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“…Therefore, whether from load conditions or material properties, increasing the hardness can improve the initial wear resistance of high manganese steel, and most of the work is around improving the hardness or surface hardness currently. Therefore, in order to improve the initial wear resistance of high manganese steel, strengthening methods such as alloying, modification, precipitation strengthening, surface deformation strengthening and surface aging treatment were adopted to strengthen the austenite matrix and distribute dispersed, fine carbides on the austenite matrix [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. However, in the overall material or the surface of the material, the higher the hardness is, the higher the wear resistance become.…”

Section: Introductionmentioning

confidence: 99%

Initial wear characteristics of aging‐treated ZG120Mn13 steel under steel shot at high‐velocity impact

Cui

Lui

Ding

et al. 2020

Materialwissenschaft Werkst

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The initial wear of high manganese steel parts in practical use is related to their original hardness, external loading, surface machining accuracy, and the change of shape and dimension. The paper studies the size and coverage percentage of impact scars on the ZG120Mn13 high carbon high manganese steel surface, as well as the variation of weight loss under high‐velocity steel shot by changing aging treatment process. Meanwhile, the relationship between the hardness of aging ZG120Mn13 steel and its initial wear characteristics is discussed. The results show that after 5 seconds, the size and coverage percentage decreased with the increment of hardness. However, in any different period, the wear mass losses of the steel increase with increment of hardness, and increase rapidly first, then slowly. Therefore, under high‐velocity impact loading, the increment of hardness is beneficial to improving initial wear‐resistance from the perspective of the deformation, but is conducive to improving the resistance from the mass loss. Consequently, we should not only emphasize the high hardness merely, but also consider the changing law of weight loss and initial deformation comprehensively, so that we can achieve the best initial wear resistance when the high manganese steel has the appropriate hardness.

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“…high wear resistance in combination with high ductility. It is possible due to the fact that steel structure consists of austenite able to deformation twinning under the effect of dynamic and/or static loads in wearing surface [1][2][3][4][5][6][7][8][9][10][11]. Hadfield steel manufactured in accordance with GOST 978-88 is considered as a classic wear-resistance high-manganese steel.…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure of high-manganese steel, modified by ultra-dispersed powders, on the base of compounds of refractory metals

Вдовин¹,

Feoktistov²,

Gorlenko³

et al. 2017

cisisr

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The paper presents the results of investigation of micro structural parameters of cast and quenched high-manganese steel depending on the amount of introduced titanium oxycarbonitride as well as on cast steel cooling rate. The main part of the work contains the experimental data in the effect of modification on average size and microhardness of austenite grain, on amount, average size and density of distribution of the excessive phase as well as its qualitative chemical composition. Generalization of the obtained experimental data allowed to reveal regularities of structure forming for high-manganese steel modified by titanium oxycarbonitride. The final part of the paper includes formulated conclusions as well as recommendations on the most rational amount of introducing modifier.

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High speed pounding: A novel technique for the preparation of a thick surface layer with a hardness gradient distribution on Hadfield steel

Cited by 21 publications

References 8 publications

Surface Nanostructuring of a CuAlBe Shape Memory Alloy Produces a 10.3 ± 0.6 GPa Nanohardness Martensite Microstructure

Surface Nanostructuring of a CuAlBe Shape Memory Alloy Produces a 10.3 ± 0.6 GPa Nanohardness Martensite Microstructure

Initial wear characteristics of aging‐treated ZG120Mn13 steel under steel shot at high‐velocity impact

Investigation of microstructure of high-manganese steel, modified by ultra-dispersed powders, on the base of compounds of refractory metals

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