PSI - Issue 28

Dragana Barjaktarević et al. / Procedia Structural Integrity 28 (2020) 2187 – 2194 Dragana Barjaktarevi ć / Structural Integrity Procedia 00 (2019) 000–000

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Fig. 2. (a) Microstructure of the Ti-13Nb-13Zr alloy [8]; (b) nanostructured modified surface after electrochemical anodization process.

3.2. Measurement of physical and mechanical properties The values of physical (modulus of elasticity E ) and mechanical properties (tensile strength R m and yield strength R p 0.2 ) of the Ti-13Nb-13Zr alloy before and after electrochemical anodization are presented in Table 1. The curves nominal stress - nominal strain of the Ti-13Nb-13Zr alloy before and after electrochemical anodization, obtained after tensile testing, are presented in Fig. 3 [7].

Table 1. Physical and mechanical properties of the Ti-13Nb-13Zr alloy before and after electrochemical anodization. modif. from [7]

Physical and mechanical properties

E / GPa

R p0.2 / MPa

R m / MPa

CG TNZ

79.11 63.21

618.77 499.63

757.97 611.77

Anodized CG TNZ

Fig. 3. Nominal stress - nominal strain curves of Ti-13Nb-13Zr alloy before and after electrochemical process. [7]