Effect of Ti and rare earth on microsegregation and large-sized precipitates of H13 steel

Ji, Fa; Xu, Rongqing; Gao, Yu-long; Tian, Qingchao; Wang, Lu; Xiao, Zhixia; Yin, Fuxing

doi:10.1007/s42243-021-00705-z

Cited by 16 publications

(7 citation statements)

References 37 publications

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“…Alloying hot-working die steel is an important way to improve its service life. The performance of hot-working die steel can be influenced to varying degrees by different alloying elements and their respective content levels, resulting in either positive or negative effects [ 27 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ]. Table 2 lists the appropriate content ranges of some alloying elements and their functions in hot-working die steels.…”

Section: Development In Microstructure Manipulation and Strengthening...mentioning

confidence: 99%

Development Trend in Composition Optimization, Microstructure Manipulation, and Strengthening Methods of Die Steels under Lightweight and Integrated Die Casting

Bao,

Yang,

Dong

et al. 2023

Materials

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In the general environment of lightweight automobiles, the integrated die-casting technology proposed by Tesla has become the general mode to better achieve weight reduction in automobiles. The die-casting mold required by integrated die-casting technology has the characteristics of large scale and complexity. Hence, higher requirements are put forward for the comprehensive performance of the die steel. Despite the stagnation in the progress of conventional strengthening methods, enhancing the performance of die steel has become increasingly challenging. Indeed, it necessitates exploring novel die steel and optimizing heat treatment and reinforcement technologies. This article summarizes and analyzes the development status of die steel and corresponding heat treatment and microstructure manipulation as well as strengthening methods and elaborates on an excellent nano-strengthening technology. Furthermore, this review will aid researchers in establishing a comprehensive understanding of the development status of die steel and the processes utilized for its strengthening. It will also assist them in developing die steel with improved comprehensive performance to meet the high demand for mold steel in the integrated die-casting technology of the new era.

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Section: Development In Microstructure Manipulation and Strengthening...mentioning

confidence: 99%

Development Trend in Composition Optimization, Microstructure Manipulation, and Strengthening Methods of Die Steels under Lightweight and Integrated Die Casting

Bao,

Yang,

Dong

et al. 2023

Materials

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“…65 [37] 264/T À 0.128 [37] La À0.0078 [38] À0.0776 [39] À3.63* [36] 0.28 [40] À0.350 [41] 0.03 [42] À6.549 [43] À4.98 [42] À2.097 Â 10 4 /T þ 4.432 [44] Al À0.01158 [39] 80.5/T 1092/T À 0.568 0.012 0.0056 0.091…”

Section: Lamentioning

confidence: 99%

“…The interaction coefficients of components in the present work. [7,[36][37][38][39][40][41][42][43][44][45][46] e i j…”

Section: Effect Of La Addition On Tin Inclusionmentioning

confidence: 99%

Modification of Nonmetallic Inclusions by Ti and La Complex Treatment in High‐Al Transformation‐Induced Plasticity Steel

Zhu

Zheng

et al. 2022

steel research int.

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The effect of Ti and La complex treatment on the formation and evolution of inclusions in high-Al transformation-induced plasticity steel is investigated by laboratory experiments and thermodynamic calculations, with consideration given to the amount of La added and the sequence of the addition of Ti. The main inclusions are Al 2 O 3 and AlN inclusions before the Ti and La additions. The AlN inclusions are transformed into TiN inclusions with the addition of 0.1 wt% Ti. After the subsequent addition of 0.007 wt% La, the main inclusions are LaAlO 3 , La 2 O 2 S, and TiN. With the addition of 0.06 wt% La to molten steel, the main inclusions are La 2 O 2 S, La 2 S 3 , and TiN. La may prevent the precipitation of TiN inclusions. Different addition sequences of Ti and La result in the same types of inclusions, with higher La addition. In the case of La addition before Ti, Ti can restrain the formation of La-containing inclusions, and the number density of inclusions increases.

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“…[4][5][6] However, with the increasing demand for automobile safety, the strength of hot-formed steel is required to be higher. According to some research reports, [7][8][9] as an important high value-added alloying element, rare earth (RE) can effectively improve the mechanical properties of pipeline steel, twinning induced plasticity steel, heat-resistant steel, wear-resistant steel, heavy rail steel, etc. It is well known that the main action modes of RE in steel include purifying molten steel, improving inclusions, and microalloying.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Microstructure and Mechanical Properties of Hot‐Formed Steel with Ce Addition

Du,

Liu,

Liu

et al. 2024

steel research int.

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In this article, the effect of Ce element on the microstructure and mechanical properties was studied by Ce addition to the hot‐formed steel. Scanning electron microscope and energy dispersive spectrometer (SEM‐EDS) was used to analyze the improvement effect of Ce on inclusions and the effect of inclusions on fracture behavior; Electron back scattering diffractometer (EBSD) was used to analyze the refinement and strengthening effect of Ce on martensitic grains; transmission electron microscope (TEM) and high resolution transmission electron microscope (HRTEM) was used to analyze the microstructure strengthening effect and microalloying effect of solid solution Ce in hot‐formed steel. Through a systematic analysis of mechanical properties and microstructure, the mechanism of Ce enhances the strength and elongation of hot‐formed steel was clarified. Besides, this work provides a research basis for further improving the safety and machinability of hot‐formed steel.

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Effect of Ti and rare earth on microsegregation and large-sized precipitates of H13 steel

Cited by 16 publications

References 37 publications

Development Trend in Composition Optimization, Microstructure Manipulation, and Strengthening Methods of Die Steels under Lightweight and Integrated Die Casting

Development Trend in Composition Optimization, Microstructure Manipulation, and Strengthening Methods of Die Steels under Lightweight and Integrated Die Casting

Modification of Nonmetallic Inclusions by Ti and La Complex Treatment in High‐Al Transformation‐Induced Plasticity Steel

Improvement of Microstructure and Mechanical Properties of Hot‐Formed Steel with Ce Addition

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