What is the effect of repeating annealing process on the same material? Does it softens the material more?

If we do annealing more than one time on the material consequently, does it soften the material more? or what?

31 December 2018 6,172 12 View

What are the values for Al 6061 in LS-Dyna card "MAT_ADD_EROSION"?

What are the values for 1. Maximum pressure at failure 2. Minimum principal strain at failure 3. Maximum effective strain at failure 4. Volumetric strain at failure 5. Number of failed integration...

31 December 2018 1,294 1 View

What is the "Secondary Crack Defect" ??

Secondary crack is observed in the sheared edge. What is significance of this secondary crack and why it is generated?

08 September 2018 1,859 0 View

What is the meaning of time period in step module of Abaqus Explicit? and How to decide the time increment in Abaqus Explicit?

I am trying to simulate punching of tube process in Abaqus. Speed of punch is 10 mm/min and it have to travel total 7 mm including the thickness of tube (1.5 mm). How to simulate the Process?...

07 August 2018 6,671 12 View

How to Fix "Solver error - time step too small" error in Ansys Explicit Dynamics?

Hello Everyone, I am trying to stimulate high speed impact punching process and after refining the mesh I encounter with this error. For refining the mesh at required region i used Sphere of...

05 June 2018 4,772 2 View

What are the material properties of Al 6061-T6 after annealing?

Material Properties after annealing.

04 May 2018 4,125 3 View

How high strain rate forming processes reduces spring back?

High strain rate forming processes, Flow stress, Spring Back

04 May 2018 655 8 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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

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

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 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 impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

What are effects of steel jacketing on flexural strength?

Dear all, If steel jacketing is used to retrofit a reinforced-concrete (RC) column, can we use it to improve flexural strength? I understand that we leave gaps between the ends of the jacket and...

22 February 2021 1,906 5 View