Table 1 Mechanical properties of bioinspired Mg-Ti composites with different architectures.

From: On the damage tolerance of 3-D printed Mg-Ti interpenetrating-phase composites with bioinspired architectures

Mechanical properties

Bioinspired Mg-Ti composites

Ti-6Al-4V scaffolds

Pure Mg

Dense Ti-6Al-4V alloy

Uniform composite49

Brick-and-mortar

Bouligand

Crossed- lamellar

Brick-and-mortar

Bouligand

Crossed- lamellar

E (GPa)

58.2 ± 4.6

54.0 ± 5.1

55.5 ± 6.3

2.3 ± 0.3

1.5 ± 0.2

2.6 ± 0.1

40.2 ± 1.0

109.8 ± 2.8

 

σYS (MPa)

77.2 ± 6.5

69.2 ± 2.4

110.0 ± 3.0

18.2 ± 1.0

9.6 ± 0.3

18.5 ± 0.4

16.5 ± 1.6

923.5 ± 2.6

 

σUTS (MPa)

169.7 ± 7.9

156.6 ± 8.6

226.6 ± 5.0

36.7 ± 1.2

12.2 ± 0.1

65.4 ± 0.4

55.9 ± 5.2

994.4 ± 11.3

116–160

εF (%)

2.09 ± 0.05

2.14 ± 0.13

3.95 ± 0.04

3.16 ± 0.18

1.00 ± 0.04

6.27 ± 0.17

8.82 ± 0.34

16.19 ± 1.68

≤0.5

UF (J cm−3)

2.61 ± 0.20

2.60 ± 0.24

7.09±0.27

0.79 ± 0.07

0.081 ± 0.004

2.92 ± 0.46

3.47 ± 0.32

153.29 ± 16.93

0.58–0.80

σY/ρ (MPa (g cm−3)−1)

27.8 ± 2.3

25.6 ± 0.9

34.4 ± 1.0

10.7 ± 0.6

6.1 ± 0.2

7.8 ± 0.2

9.5 ± 0.9

204.8±0.6

 

σUTS/ρ (MPa (g cm−3)−1)

61.0 ± 2.9

58.0 ± 3.2

70.8 ± 1.6

21.7 ± 0.7

7.8 ± 0.1

27.5 ± 0.2

32.1 ± 3.0

220.5 ± 2.5

37–51

UF/ρ (J g−1)

0.94 ± 0.07

0.96 ± 0.09

2.22 ± 0.08

0.47 ± 0.04

0.052 ± 0.003

1.23 ± 0.19

2.10 ± 0.19

33.99 ± 3.75

0.19–0.26

KIc (MPa m0.5)

22.4

25.0

27.7

   

6–20

79.6

 

JIc (kJ m−2)

8.9

11.3

13.0

    

57.9

 

Jss (kJ m−2)

15.4

22.7

30.2

    

82.4

 

Kss (MPa m0.5)

31.8

37.0

43.5

    

101.2

 
  1. The data for the Ti-6Al-4V scaffolds without infiltration of Mg, the coarse-grained pure Mg, the 3-D printed dense Ti-6Al-4V alloy, and the Mg alloy composite reinforced with discrete Ti-6Al-4V particles (uniform composite) are also presented for comparison. E: Young’s modulus; σYS: yield strength; σUTS: ultimate tensile strength; εF: elongation to fracture; UF: work of fracture; ρ: density; KIc: K-based fracture toughness; JIc: J-based fracture toughness; Kss: Crack-growth toughness at \(\Delta a=1{{{{{\rm{mm}}}}}}\); Kss: K-based crack-growth toughness at \(\Delta a=1{{{{{\rm{mm}}}}}}\).
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