Esmaeil Damavandi

9 Questions 62 Answers 0 Followers

Questions related from Esmaeil Damavandi

How can I calculate the strengthening coefficient of Al-A356 ( Ky ) in hall-petch strengthening?

and burger's factor of this Al (A356)

04 April 2015 4,493 6 View

How can I disperse Al2O3 powder in molten Al A356 in compo-casting method?

Al2O3 particles don't have wettability with molten Al. They float on the surface of the molten without any change in structure of particles.

28 January 2014 1,563 6 View

Why do Al2O3 particles not disperse in molten Al A356 matrix?

I did several experiments for dispersion of Al2O3 particles in molten Al A356 matrix but I couldn't catch any results, heat treatment of Al2O3 in 900 deg for 2 hrs and another experiment in 400...

15 January 2014 3,667 4 View

How could we dissolute Al2O3 particles in Al A356 molten?

According to articles I've added 5 percent alumina to molten (aluminum) but the amount of dissolution were low and it were exposed a lot of powders on the surface of the molten. I can't...

08 December 2013 2,074 7 View

How I can install catia V5R21 in Windows 8.1?

I've tried more than once but I can't install that. Does anyone have an idea why this keep happening?

19 November 2013 5,369 7 View

What is the best heat treatment to increase hardness of aluminum alloy (Al A356)?

Temperature? Time? What is your reason?

17 September 2013 6,557 7 View

Does chemical reaction occur between steel and aluminum molten? If yes, how much is it? How can the amount of reaction be reduced?

I chose the steel for impeller. Production aluminum matrix composite reinforced with ceramic particles by stir casting.

07 September 2013 5,323 7 View

What is the best, the simplest, the cheapest and the most effective corrosion test for Al2O3?

This method's time is low.

04 August 2013 1,532 2 View

Can someone suggest information on ceramic powders(Al2O3)?

Mechanical properties and other properties. ( wear resistance and hardness and etc )

27 July 2013 4,737 10 View