Iron as a Promising Alloying Element for the Cost Reduction of Titanium Alloys: A Review

Abdalla, Ayad Omran; Amrin, Astuty; Muhammad, Sallehuddin; Hanim, M.A. Azmah

doi:10.4028/www.scientific.net/amm.864.147

Cited by 6 publications

(4 citation statements)

References 37 publications

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“…From Fig. 4(a), it is evident that the finer colony size and lamellar thickness produced by adding W improved the tensile properties of the Ti64 alloy, as was previously reported in several studies [12][13][14][15]. According to Kar et al…”

Section: Resultssupporting

confidence: 69%

“…The alloy's excellent mechanical properties have been attributed to the combination of hcp α and bcc β phases, which form typical microstructures such as α/β lamellar and colony microstructures. The size and ratio of the phases can be tuned by adjusting the processing conditions [12][13][14][15]. However, despite these advantages, Ti64 has inferior hardness and wear resistance, and these remaining challenges have yet to be solved.…”

Section: Introductionmentioning

confidence: 99%

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Correlation between the Microstructure and Mechanical Properties of W-Bearing Ti-6Al-4V Alloys

Ahiale¹,

Kye²,

Kwon³

et al. 2021

Korean J. Met. Mater.

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W-containing Ti-6Al-4V alloys (W=0, 1, and 5 wt%) were fabricated by the powder injection molding process, and the corresponding effects of tungsten content on the mechanical properties and microstructure of the alloys were investigated. The alloy powders were sintered at 1200 °C and then hot-isostatically-pressed at 900 °C. The fabricated alloys were subjected to microstructural and chemical analyses, and tensile and nano-indentation tests. The yield strength and tensile strength proportionally increased as the W content was increased from 0 wt% to 5 wt%. Ductility was not affected by the addition of up to 5 wt% W due to its complete dissolution in the matrix. Higher W addition induced finer α/β lamellar microstructures and increased the β to α phase ratio. Moreover, the added W dissolved preferentially in the β phase by solid solution hardening, increasing the hardness of the β phase, which originally was significantly softer than the α phase. For the alloys containing up to 5 wt% W, the strengthening without ductility loss was attributed to the finer α/β lamellae and the volume increase in the β phase hardened by W. These results suggest that adding W to Ti-6Al-4V alloy is a promising method for developing Ti alloys with both high strength and toughness.

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Section: Resultssupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Correlation between the Microstructure and Mechanical Properties of W-Bearing Ti-6Al-4V Alloys

Ahiale¹,

Kye²,

Kwon³

et al. 2021

Korean J. Met. Mater.

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show abstract

“…A study involving pure titanium, Ti–6Al–4V, TFC and TFCA, has shown that TFC and TFCA had greater cell viability among the groups. As such, there is a potential for TFC and TFCA to be used more widely in other types of healthcare goods [ 75 ].…”

Section: Biomedical Applications Of Titanium Alloysmentioning

confidence: 99%

A state-of-the-art review of the fabrication and characteristics of titanium and its alloys for biomedical applications

et al. 2021

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Commercially pure titanium and titanium alloys have been among the most commonly used materials for biomedical applications since the 1950s. Due to the excellent mechanical tribological properties, corrosion resistance, biocompatibility, and antibacterial properties of titanium, it is getting much attention as a biomaterial for implants. Furthermore, titanium promotes osseointegration without any additional adhesives by physically bonding with the living bone at the implant site. These properties are crucial for producing high-strength metallic alloys for biomedical applications. Titanium alloys are manufactured into the three types of α, β, and α + β. The scientific and clinical understanding of titanium and its potential applications, especially in the biomedical field, are still in the early stages. This review aims to establish a credible platform for the current and future roles of titanium in biomedicine. We first explore the developmental history of titanium. Then, we review the recent advancement of the utility of titanium in diverse biomedical areas, its functional properties, mechanisms of biocompatibility, host tissue responses, and various relevant antimicrobial strategies. Future research will be directed toward advanced manufacturing technologies, such as powder-based additive manufacturing, electron beam melting and laser melting deposition, as well as analyzing the effects of alloying elements on the biocompatibility, corrosion resistance, and mechanical properties of titanium. Moreover, the role of titania nanotubes in regenerative medicine and nanomedicine applications, such as localized drug delivery system, immunomodulatory agents, antibacterial agents, and hemocompatibility, is investigated, and the paper concludes with the future outlook of titanium alloys as biomaterials. Graphic abstract

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“…ing Titanium powder metallurgy research has been recently dedicated to cost effective ways to manufacture titanium alloy parts. [80][81][82] In the progress of manufacturing cheaper Ti alloys, the addition of iron (Fe) as a β -Ti stabilizer into the alloy compositions has been widely explored. Some researchers showed that the improvement in sinterability through the addition of fine pure iron powder (mean particle size = 8 μm).…”

Section: Opportunity Of Iron Powder For Activated Sinter-mentioning

confidence: 99%

Opportunity and Challenges of Iron Powders for Metal Injection Molding

et al. 2021

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Design flexibility, mass customization, waste reduction and the ability to manufacture near-net complexshape structures, as well as rapid prototyping, are the main advantages of Metal Injection Molding (MIM). A brief review of the MIM technique, materials and their development to trending applications using iron powders was delineated. The ground-breaking applications of MIM in automotive, medical, and magnetic materials were discussed. The current-status of iron powder product development prepared for MIM was reviewed. In addition, this paper discussed the main processing challenges considering the MIM technology for producing high-end applications. Overall, this paper gives a summary of MIM, including a study on its benefits and opportunities and as a roadmap for future research and development in iron and steel powder manufacturing technique. KEY WORDS: metal injection molding; iron powders; mass customization; microstructure. ders such as copper, molybdenum, chromium, and nickel. 6) Currently, estimate share of MIM in metal powder industry is minimal, close to 6 000 TPA for iron powders (excluding stainless steel and high alloy steels). 7) The demand is Table 1. Global pure iron powder production (in MT) of key manufacturers in 2017 (Source: QYR Chemical & Material Research Centre, April 2017).

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Iron as a Promising Alloying Element for the Cost Reduction of Titanium Alloys: A Review

Cited by 6 publications

References 37 publications

Correlation between the Microstructure and Mechanical Properties of W-Bearing Ti-6Al-4V Alloys

Correlation between the Microstructure and Mechanical Properties of W-Bearing Ti-6Al-4V Alloys

A state-of-the-art review of the fabrication and characteristics of titanium and its alloys for biomedical applications

Opportunity and Challenges of Iron Powders for Metal Injection Molding

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