Effect of titanium on the allotriomorphic ferrite transformation kinetics in medium carbon–manganese steels

Andrés, Carlos García de; Capdevila, Carlos; Martín, David San; Caballero, Francisca G.

doi:10.1016/s0921-5093(01)01690-2

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…It is the most useful element for controlled rolling at the unrecrystallisation area and obtaining fine grain size. [24][25][26] However, the addition of Nb element resulted in heterogeneous microstructure, due to the existence of strain induced grain boundary migration, composition segregation or heterogeneous strain, 27 which led to reduction in the effective grain boundaries.…”

Section: Resultsmentioning

confidence: 99%

Effects of carbon and niobium on microstructure and properties for Ti bearing steels

Ji¹,

Li²,

Tang³

et al. 2015

Materials Science and Technology

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The objective of the study described here is to elucidate the effect of carbon and niobium on the microstructure, precipitation behaviour, and mechanical properties of 0?09C-0?11Ti (%) steel and 0?05C-0?025Nb-0?11Ti (%) steel under ultra fast cooling condition. The strengthening mechanisms are also discussed. The ferrite grains size and the size of precipitates in Ti and Nb-Ti steels were measured respectively. The mechanical properties obtained in Ti steel were similar to Nb-Ti steel with yield stress .700 MPa, elongation .20%, and good low temperature impact toughness. The study underscores that addition of higher carbon content by 0?04% under controlled rolling and ultra fast cooling conditions, we can achieve similar strength in the absence of micro-alloying element, niobium.

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Section: Resultsmentioning

confidence: 99%

Effects of carbon and niobium on microstructure and properties for Ti bearing steels

Ji¹,

Li²,

Tang³

et al. 2015

Materials Science and Technology

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“…Some previous research indicated that MMSs have excellent ductility-strength performance, high surface hardening capability and satisfying wear resistance, which makes them attractive for various wear-dominated industries such as petrochemical, aerospace, shipbuilding, construction and especially the mining industry [7]. Besides, MMSs show a better selfstrengthening effect and higher abrasive impact wear resistance than martensitic and bainitic steels under the continuous medium-or low-impact load, and the wear resistance and work hardening ability of MMSs can be increased by 50-140% and 60-120%, respectively [8][9][10][11][12][13]. LCS, on the other hand, is a good candidate as a base material due to its superior ductility, toughness, and weldability, which enables a lower cost of the resultant bimetal composite compared with the high cost of monolithic MMS layer.…”

Section: Introductionmentioning

confidence: 99%

Analysis of abrasive impact wear of a bimetal composite using a newly designed wear testing rig

Yuan,

Wu,

Xie

et al. 2024

Preprint

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In this study, the abrasive impact wear behaviour of a bimetal composite made of MMSs and LCSs (Mn8/SS400) were investigated by comparison with the existing wear resistant steels (benchmark steels) using a newly designed wear testing rig. The parameters including wear loss, wear rate, and hardness were evaluated. Scanning electron microscopy (SEM), X-ray diffractometer (XRD), and electron backscatter diffraction (EBSD) were used to analyse the wear mechanisms. The wear resistance of Mn8/SS400 bimetal composite is up to 2.8 times higher than that of benchmark steels due to better work hardening sensitivity of the bimetal composite. After 300 h abrasive impact wear, the highest microhardness of the subsurface layer for Mn8 reaches 601.31 HV, which is much greater than that of matrix (292.24 HV), showing a remarkable work hardening effect. The wear mechanism of Mn8/SS400 bimetal composite is ascribed to synergistic effect of grain refinement strengthening, dislocation strengthening, and twin strengthening. Prior to the 200-h abrasive impact wear test, the dominant wear mechanism in the Mn8/SS400 bimetal composite is primarily attributed to twin strengthening. However, following the 300-h impact wear test, the contribution to wear resistance becomes increasingly significant from all three strengthening mechanisms (dislocation, grain refinement, and twin strengthening).

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The impact wear-resistance enhancement mechanism of medium manganese steel and its applications in mining machines

Wang

Wang³

2017

Wear

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Effect of titanium on the allotriomorphic ferrite transformation kinetics in medium carbon–manganese steels

Cited by 7 publications

References 26 publications

Effects of carbon and niobium on microstructure and properties for Ti bearing steels

Effects of carbon and niobium on microstructure and properties for Ti bearing steels

Analysis of abrasive impact wear of a bimetal composite using a newly designed wear testing rig

The impact wear-resistance enhancement mechanism of medium manganese steel and its applications in mining machines

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