Peyman Ahmadian

7 Questions 9 Answers 0 Followers

Questions related from Peyman Ahmadian

Is there any relationship between strain hardening exponent (n) and grain size of metallic materials (especially titanium alloys)?

Holloman, voce, texture, grain size, strain hardening exponent, titanium alloys

23 June 2019 7,065 3 View

Which kind of stresses resulted in lattice strain evolution in metals? (plastic or elastic)?

XRD results indicate that there are significant peak broadening and peak shifting in cold rolled Ti64 alloy (10 % cold rolled). 1- Is it logical to relate peak broadening to the lattice strain...

28 April 2019 3,041 2 View

What is the relationship between KAM and GND after moderate plastic deformation in Ti64 alloy?

EBSD data for Ti64 alloy with different texture shows that after moderate uniaxial compression, high KAM value for soft grains resulted in high GND in comparison with hard grains. how can i...

10 October 2017 7,976 3 View

Is it possible to calculate the value of dislocation density quantitatively using GND (geometry necessary dislocation) MAP?

GND Map of alpha phase in Ti6Al4V alloy have been generated using EBSD.

30 April 2017 9,352 4 View

Is It possible to determine dislocation density of poly-crystalline Ti64 alloy using ATOM software? what kind of file is necessary for this?

EBSD analysis of samples is available. is it possible to import EBSD file to ATOM for dislocation density determination?

17 April 2017 9,612 4 View

TTT diagram for incoloy 907

How can I obtain TTT diagram for incoloy 907 alloy according to its chemical composition? (Ni= 38%, Co= 13%, Nb= 5%, Ti= 1.5%, Si=0.3%, Fe= balance)

01 January 1970 2,972 2 View

Fractography analysis fatigue

recently, I investigated the damaged blade surface for gas turbine component. According to the fractography analysis, the striation and beach marks have been observed. How can I realize that...

01 January 1970 1,806 2 View