Investigation on the Microstructure and Mechanical Properties of Ti-1.0Fe Alloy with Equiaxed α + β Microstructures

Zheng, Ruixiao; Deng, Guanyu; Shibata, Akinobu; Tsuji, Nobuhiro

doi:10.1007/s11661-020-05760-x

Cited by 10 publications

(1 citation statement)

References 25 publications

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“…Based on this, the matrix β could be soft compared to the α′. The transformed α′ having high hardness values compared to the β phase was previously reported 28,29 . Therefore, it is to note that the prior metastable, soft β phase transforms into a relatively hard α′ phase.…”

Section: Discussionmentioning

confidence: 51%

Exceptionally high strain-hardening and ductility due to transformation induced plasticity effect in Ti-rich high-entropy alloys

Eleti

Klimova

Tikhonovsky

et al. 2020

Sci Rep

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Their experimental observations confirmed the Bo-Md approach could be useful in terms of designing new Ti-rich BCC-HEAs. It should be noted however, the relevance and validity of these predictions based on this controlled alloy strategy for other alloys is not yet fully explored. The primary objective of the present study is to investigate deformation mechanisms of new Ti-rich BCC-HEAs designed using the Bo-Md approach. Given the vast compositional space of HEAs, appropriate alloying elements must be chosen in order to exploit the required properties in terms of designing new HEAs. Here, we designed two new Ti-rich HEAs having chemical compositions Ti 38 Zr 25 Hf 25 Ta 7 Sn 5 , Ti 38 Zr 25 Hf 25 Ta 10 Sn 2 to compare them with the Ti 35 Zr 27.5 Hf 27.5 Nb 5 Ta 5 alloy. It is known that an addition of Sn increases β stability of Ti-alloys 14-16. Furthermore, the combination of Ta and Sn alloying elements were previously reported to have advantages in terms of tuning the martensite formation temperature 15. Therefore, in the present study, first we chose the Ti 35 Zr 27.5 Hf 27.5 Nb 5 Ta 5 alloy 13 as a base reference and replaced Nb with Sn, and adjusted the overall chemical compositions as Ti 38 Zr 25 Hf 25 Ta 10 Sn 2 , and Ti 38 Zr 25 Hf 25 Ta 7 Sn 5 to make sure the alloys positions are maintained along or near the M s ~ RT domain, on the Bo-Md diagram. Latter, the obtained alloys were characterized and their deformation mechanisms were systematically investigated.

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Section: Discussionmentioning

confidence: 51%

Exceptionally high strain-hardening and ductility due to transformation induced plasticity effect in Ti-rich high-entropy alloys

Eleti

Klimova

Tikhonovsky

et al. 2020

Sci Rep

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Effect of Coal and Coke Ash on Blast Furnace Slag Properties: A Comparison Between Pulverized Coal, Charcoal, Fossil‐Based Coke, and Biocoke

Heikkilä

Iljana

Heikkinen

et al. 2021

steel research int.

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Blast furnace (BF) is the most used equipment for production of iron in the world. It is charged mainly with metallurgical coke and ferrous materials. When descending inside the BF, iron‐bearing materials start reducing and melting with other burden materials. This melting leads to the formation of so‐called primary slags from which the final slag is formed as materials descend inside the furnace. Each charge material has a unique effect on the total composition of the BF slag. Herein, the parts of the slag, which originate from ash of metallurgical coke and pulverized coal, and changes in the final slag compositions and properties are focused on. The global trend is to decrease the use of fossil‐based carbon by replacing it with bio‐based coal. Ash from coke and pulverized coal eventually dissolve in the final slag, affecting its properties. The purpose herein is to evaluate how BF slag composition changes when fossil‐based coke is replaced with biocoke and pulverized coal is replaced with charcoal. Based on mass balance calculations, these replacements have both increasing and decreasing effects on solidus and liquidus temperatures, viscosity, and CaO/SiO2 and MgO/Al2O3 ratios depending on the used replacement materials.

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Microstructural evolution and compressive properties of nanocrystalline Ti–Fe alloy fabricated via cryomilling and spark plasma sintering

2022

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Investigation on the Microstructure and Mechanical Properties of Ti-1.0Fe Alloy with Equiaxed α + β Microstructures

Cited by 10 publications

References 25 publications

Exceptionally high strain-hardening and ductility due to transformation induced plasticity effect in Ti-rich high-entropy alloys

Exceptionally high strain-hardening and ductility due to transformation induced plasticity effect in Ti-rich high-entropy alloys

Effect of Coal and Coke Ash on Blast Furnace Slag Properties: A Comparison Between Pulverized Coal, Charcoal, Fossil‐Based Coke, and Biocoke

Microstructural evolution and compressive properties of nanocrystalline Ti–Fe alloy fabricated via cryomilling and spark plasma sintering

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