Global Journal of Science Frontier Research, A: Physics and Space Science, Volume 22 Issue 1

0 2500 5000 7500 10000 0 1 2 3 Al-8Zn (a) σ = 18.255 MPa T ime ( Sec. ) ε % 523 K 543 K 563 K 583 K 603 K 623 K 643 K 0 2500 5000 7500 10000 0 1 2 3 (b) σ = 18.255 MPa 523 K 543 K 563 K 583 K 603 K 623 K 643 K ε % Time(Sec.) Al-85Zn Figure (2): Isothermal Strain-Time diagrams for 18.255 MPa for different seven tested temperatures for a) Al-8Zn, and b) Al-85Zn 0 2500 5000 7500 10000 0 1 2 3 (a) ε % Al-8Zn (a) σ = 21.70 MPa T ime ( Sec. ) 523 K 543 K 563 K 583 K 603 K 623 K 643 K 0 2500 5000 7500 10000 0 1 2 3 (b) σ = 21.70 MPa 523 K 543 K 563 K 583 K 603 K 623 K 643 K ε % Time(Sec.) Al-85Zn Figure (3): Isothermal Strain-Time diagrams for 1) Al-8Zn, and 2) Al-85Zn at 21.7 MPa for different seven tested temperatures Influence about Zinc for Transient; Steady State Creep Properties, Microstructure and Characteristics in Aluminum Alloys © 2022 Global Journals 1 Year 2022 34 Global Journal of Science Frontier Research Volume XXII Issue ersion I VI ( A ) The relationship through in straintransient and in time donate upright ranges as represented at Figure (4-6) a, b. The values of strain / time denotes the amount for the exponent of the first strain-time diagrams; parameters n are point for possessing amounts about 0.31 until 0.85 in case of Al-8Zn samples; about 0.44 until 1.22 in case of Al-85Zn alloys see table 2. n parameters are heightened according to heighten distortion degree in case of two specimens accordingly represented in Figure(7); while their intercepts for ln time equal zero denotes; eta the strain- time coefficient, β eta has been obtained using Equation(2) [54]. β