Tailoring mechanical and surface properties of UFG CP-Ti by the low-temperature annealing

• DOI: 10.1016/j.apsusc.2022.155038
• Publication Date: 2022-09-27T15:42:55Z
• Authors: Agata Sotniczuk; Donata Kuczyńska-...; Kamil Majchrowicz; Ewa Kijeńska-Gawr...; Mirosław Kruszewski; Kostiantyn Nikiforow; Marcin Pisarek; Wojciech Swieszko...; Halina Garbacz
• Keywords: 02 engineering and technology; 0210 nano-technology

This work offers the approach to exploit simple and cost-effective low-temperature annealing treatment simultaneously enhance of hardness, corrosion biological response ultra-fine grained commercially pure titanium (UFG CP-Ti) fabricated by multiple-pass cold rolling technique. Performed investigations revealed that improvement all these characteristics was possible subjecting UFG CP-Ti heat with parameters 250 °C/15 min. Hardening (for about 4.2 %) governed both partial recovery process structure segregation impurities atoms during annealing. Thereby, this beneficial effect achieved only in a certain level Ti Grade 2). Enhancement resistance fluoridated medium (increase passive layer Rp from 0.28 ± 0.16 3.48 0.18 MOhm*cm2) osteoblast-like closely related thermally-induced changes e.g. growth its thickness (from c.a. 6 11 nm) nanotopography arithmetic deviation surface roughness Ra 5 1 10 2 nm). Overall results indicate is an effective way improve bulk properties biomedical CP-Ti, which could be easily transferred industrial scale.