Enhancement of the shape memory effect by the introductions of Cr and Sn into the β–Ti alloy towards the biomedical applications

Chiu, Wan–Ting; Wakabayashi, Kaoru; Umise, Akira; Tahara, Masaki; Inamura, Tomonari; Hosoda, Hideki

doi:10.1016/j.jallcom.2021.160088

Cited by 14 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the screening results of the transition metals stated in the previous section, it was verified that the Ti-Au-Cr alloy system could be the most promising candidate due to its high shape recovery upon heating and balanced mechanical properties. 29,38) In addition, it was found that with the addition of Cr, the workability of the alloy could be promoted; 56) however, the increasing of Cr addition to a certain large amount could lead to an issue of biocompatibility. Besides, it is necessary to figure out the most appropriate amount of the Cr addition.…”

Section: Manipulation Of the Chemical Composition Of The Ti-4au-xcr A...mentioning

confidence: 99%

A Review of Investigations on Microstructure and Mechanical Properties of the Present Achievements of the Ti-Au-based Shape Memory Alloys

2023

Self Cite

View full text Add to dashboard Cite

Owing to the worldwide growth of aging population, the biomedical materials, such as implantation materials, are greatly demanded in these decades. Shape memory alloys (SMAs) and superelastic (SE) alloys, whose shape deformation could be manipulated by controlling the stress and temperature applied, are considered as promising materials to practice the biomedical applications. In this article, the β-Titanium (β-Ti) alloys were chosen for their high biocompatibility and appropriate shape deformation behaviors. First, Gold (Au) element was chosen as the tailoring element to functionalize the β-Ti alloys for its high X-ray contrast, which is a crucial prerequisite for the biomedical materials. Second, to impose the phase transformation temperature to be around the human body temperature, various transition metals were examined and introduced into the Ti-Au-based alloys. Based on the screening results of the transition metals, chromium (Cr) was determined to be the addition element. To further enhance the X-ray contrast and biocompatibility as well as conduct the fine-tune of phase stability of the Ti-Au-Cr-based alloys, Tantalum (Ta), which possesses high X-ray contrast and excellent biocompatibility, was served as the fourth element in this system and its addition concentration was optimized. Besides to the selection of the elements, the annealing temperature and annealing time length were both investigated to optimize the transformation temperature, phase stability, and microstructures. It was found that the Ti-4Au-5Cr-5Ta alloy, which was annealed at 1 073 K for 1.8 and 3.6 ks performed a room temperature superelasticity, showed almost 100% shape recovery upon unloading.

show abstract

Section: Manipulation Of the Chemical Composition Of The Ti-4au-xcr A...mentioning

confidence: 99%

A Review of Investigations on Microstructure and Mechanical Properties of the Present Achievements of the Ti-Au-based Shape Memory Alloys

2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Depending on the chemical composition, Ti and Cr based composites may comprise some amount of high-temperature phases, namely, silicides, aluminides, MAX phases, etc. [44][45][46][47][48][49][50][51]. In particular, MAX phases are formed as quite distinct regions along the boundaries of titanium or chromium grains in Ti and Cr based composites [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

“…In the case when the A atoms of Ti3SiC2 are partially replaced with Al, Ti3Si1-xAlxC2 solid solutions are formed [18,52,58] that improves selfhealing performance of the material due to the rapid diffusion and oxidation of aluminum and a high oxidation resistance of aluminum oxide. Besides, the oxidation temperature of Al can be lowered to 900 °C in the case of partial replacement of Al with Sn in Ti2AlC MAX phase [18,49,52,59]. At temperatures below 600 °C, SnO2 can be already formed in Ti2Al1-xSnxC providing its good crack filling properties in this temperature range.…”

Section: Introductionmentioning

confidence: 99%

THE EFFECT OF ULTRA-FINE ALLOYING ELEMENTS ON THE PHASE COMPOSITION, MICROSTRUCTURE, HIGH-TEMPERATURE STRENGTH AND FRACTURE TOUGHNESS OF Ti–Si–X AND Ti–Cr–X COMPOSITES

Kulyk

Vasyliv

Duriagina

et al. 2022

Acta Metall Slovaca

View full text Add to dashboard Cite

Advanced Ti-based composites are promising for applications in components of modern aircraft and rocket engines as well as other power equipment owing to their high strength-to-weight ratio and fracture toughness in a temperature range of 20 °C to 650 °C. However, there is a need to increase their operating temperature range up to 700−800 °C. In this work, mechanical behavior of Ti–Si–X composites (X=Al and/or Zr, Sn, C) has been studied. For comparison, mechanical behavior of Ti–Cr–X composite (X=Al and/or C) has been studied. As-cast and thermo-mechanically deformed series of beam specimens were examined. Strength tests of specimens were performed under three-point bending in a temperature range of 20 °C to 1000 °C. Single-edge notch beam (SENB) tests under three-point bending of specimen series were carried out in a temperature range of 20 °C to 900 °C for estimating fracture toughness of materials. Based on the constructed dependences of fracture toughness and strength on testing temperature for the specimen series as well as the microstructure and failure micromechanism analyses, the role of ultra-fine alloying elements in achieving good high-temperature strength and fracture toughness of the studied composites was substantiated.

show abstract

The Effect of Ultra-fine Alloying Elements on High-Temperature Strength and Fracture Toughness of Ti–Si–X and Ti–Cr–X Composites

Vasyliv¹,

Duriagina

Kulyk

et al. 2023

Springer Proceedings in Physics

View full text Add to dashboard Cite

Enhancement of the shape memory effect by the introductions of Cr and Sn into the β–Ti alloy towards the biomedical applications

Cited by 14 publications

References 33 publications

A Review of Investigations on Microstructure and Mechanical Properties of the Present Achievements of the Ti-Au-based Shape Memory Alloys

A Review of Investigations on Microstructure and Mechanical Properties of the Present Achievements of the Ti-Au-based Shape Memory Alloys

THE EFFECT OF ULTRA-FINE ALLOYING ELEMENTS ON THE PHASE COMPOSITION, MICROSTRUCTURE, HIGH-TEMPERATURE STRENGTH AND FRACTURE TOUGHNESS OF Ti–Si–X AND Ti–Cr–X COMPOSITES

The Effect of Ultra-fine Alloying Elements on High-Temperature Strength and Fracture Toughness of Ti–Si–X and Ti–Cr–X Composites

Contact Info

Product

Resources

About