Yasser Abdelrhman

8 Questions 22 Answers 0 Followers

Questions related from Yasser Abdelrhman

After the aging heat treatment at 400 C for a Ti-alloy with high content of beta stabilizer elements, I can not detect w phase, and I do not know why?

Arc melted Ti-alloy consists high content of Mo and Fe alloying elements, was subjected to solution treatment at 900 c, followed by ice water quenched then followed by an aging treatment for 3 hrs...

27 January 2016 7,745 2 View

In titanium alloys: Can I distinguish between alpha, alpha' and alpha'' through XRD patterns ONLY without studying the microstructure?

If I have titanium-based alloy subjected to different thermal treatments, Is there any database (such as Tables or ...) illustrates: [the (2 theta) versus the peaks] and the specific type of the...

25 June 2015 1,665 6 View

How can I deal with the high percentage error of Impedance resistance (Rb or Rct) using Zview software?

I am using Zview software to analyzed my impedance data, and after I select the suitable equivalent circuit and obtaining a good fitting (please see both Nyquist and Bode plots, attached files) I...

07 January 2015 2,788 13 View

Is there a relationship between the Potentiodynamic corrosion current and the charge transfer resistance from Impedance?

I have an alloy subjected to various heat treatment, Ti-15Mo-5Fe-5Zr , and I performed both the potentiodynamic polarization and the impedance test in Ringer's solution, but the obtained Icorr and...

21 December 2014 1,283 16 View

How can I find the equivalent circuit from EIS data that is in a text file form?

I have EIS data as text file. Could anyone tell me how I can create a "Z extension file" to load it in ZsimWin software to find the equivalent circuit? Or whether there is any other way to enable...

23 October 2014 9,955 4 View

What is the difference between corrosion current and corrosion potential?

I have a titanium alloy specimen with composition Ti-5Mo-5Fe, and after performed the potentiodynamic corrosion test I obtained Icorr & Ecorr and by comparing these results with the Ti-6Al-4V...

17 July 2014 3,563 8 View

How can I determine the amount of released ions from a metal that is immersed in solution?

I am working on the corrosion of titanium alloys especially "Potentiodynamic test"- in Ringer's Solution. My alloy composition is Ti-6Al-4V, and I want to determine the number of released ions -in...

14 July 2014 7,977 4 View

Does epoxy mounting show any peaks in XRD examination?

I have very small Ti specimens, and I want to use epoxy mounting directly in the chamber of XRD, but I am afraid that this addition of material will affect the output XRD peaks. May I first...

07 June 2014 8,909 4 View