Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides

Chinese Journal of Mechanical Engineering

Table 2 Constitutive parameters for bulk and cohesive elements

	Yield stress (MPa)	Elastic modulus (GPa)	Poisson’s ratio	Cohesive strength (MPa)	Fracture energy (J·m^-2)
Zr [18, 38]	389	87	0.32	−	−
Hydride [35]	400	110	0.32	−	−
Zr–Zr	−	−	−	389 × n_Zr	16508
H–H	−	−	−	400 × n_H	89
Zr–H	−	−	−	(389 × n_Zr + 400 × n_H)/2	8298