Some alloys show the deformation texture close to that of the annealing texture. What are the possible mechanisms for this specific outcome?

Some metals/alloys show a static recrystallisation texture close to that of the deformation one. These are usually not expected due to the oriented nucleation and oriented growth theories which...

09 October 2016 4,283 3 View

Why do variations occur in the linear elastic region of a tensile test when performed using molecular dynamics (LAMMPS)?

I am trying to perform tensile testing of a bulk copper box. But when I plot the results of the test, I get a slight curve in the elastic region of the stress-strain plot. Is this normal? Also I...

01 February 2016 2,332 6 View

Is polyethylene glycol (PEG) hygroscopic?

Does Polyethlylene Glycol absorb water when exposed to air in room conditions? Is it possible to remove the absorbed water by simple heating?

31 December 2015 866 7 View

Is there a relation between sample thickness and recrystallisation and grain growth resistance?

If I have a deformed specimen and I used wire EDM cutting to cut the material into samples of different thicknesses. Assuming the HAZ from the EDM wire cutting is removed, if I were to heat treat...

10 November 2015 5,914 17 View

How do we simulate a nanotwinned Copper microstructure using LAMMPS?

I would like to know how to create twin boundaries (code it) in a metal using lammps. I am try to simulate the effects of twin boundaries in strenthening of copper so I require twins in initial...

09 October 2015 5,242 11 View

What are the guidelines to be followed for tensile test simulations using LAMMPS?

I would like to know what precautions one should take while performing tensile testing in LAMMPS. For example; tensile testing of Copper. I would like to perform the test at room temperature...

09 October 2015 3,172 7 View

Is it possible to obtain copper without any annealing twins through processing?

In copper we observe annealing twins, growth twins or deformation twins regularly based on the processing history. Is it possible to process copper such that the twins are not nucleated or the...

08 September 2015 131 1 View

Can anyone help with the definitions of coherent and incoherent twin boundaries in metals?

In metals if we say a boundary is coherent, it is understood that the atoms on either side of the boundary have a one-to-one matching bonds on the other side and for incoherent boundaries all...

07 August 2015 9,058 16 View

Are all Sigma-3 boundaries coherent twin boundaries during EBSD mapping using TSL-OIM software?

It is seen in literature that Sigma-3 CSL boundaries are usually taken as twin boundaries and more importantly coherent twin boundaries. I am asking this since I am getting significantly...

06 July 2015 9,623 11 View

Can anyone share the solution to etch nanotwinned Copper obtained through pulsed electrodeposition for observing its microstructure using SEM?

05 June 2015 5,534 6 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View