The effects of Co and Al in steels?

Why does the Co make the CCT curve move leftwards? Why do the Al and Co raise the Ms point? Thank you.

03 April 2016 788 0 View

The forming conditions of epsilon and alpha martensite?

Does anyone know the forming conditions of epsilon and alpha martensite? Thank you.

03 April 2016 7,037 3 View

Does anyone know the forming mechanism of the annealing twins in austenitic steels after annealing treatment?

Does anyone know the forming mechanism of the annealing twins in austenitic steels after annealing treatment?

03 April 2016 7,681 1 View

Does anyone know the method of changing the as-welded columnar austenite microstructure into equiaxed austenite microstructure?

Does anyone know the method of changing the as-welded columnar austenite microstructure into equiaxed austenite microstructure in the weld metal of the austenitic steel? Thank you.

02 March 2016 3,995 4 View

How to confirm the deformation mechanism of spot welds with different Mn contents?

31 December 2015 1,599 3 View

Does anyone know the effect of Mn on the stacking fault energy of austenite in steel, and how to measure the stacking fault energy of austenite?

Does anyone know the effect of Mn on the stacking fault energy of austenite in steel, and how to measure the stacking fault energy of austenite? Thank you.

31 December 2015 7,008 2 View

Does anyone know the effect of Mn content on the transformation of austenite to martensite in high Mn steel during deformation process?

Does anyone know the effect of Mn content on the transformation of austenite to martensite in high Mn steel during deformation process? For the high Mn steel with full austenite microstructure,...

09 October 2015 889 5 View

What is the effect of Al on diffusion of H in steel?

09 October 2015 6,571 3 View

Can anyone tell me the differences among the three nugget diameters along the three interfaces in the four-layer resistance spot welds?

For the four-layer resistance spot welds, there are three interfaces in the spot welds, namely two side interfaces and one center interface. The nugget diameters along the two side interfaces are...

02 March 2015 191 1 View

What will happen if the steels were quenched for more than one time?

For high strength steels, fully austenite microstructure can be obtained when the steels were quenched from the temperatures above the austenitizing temperature. If we conduct the quenching...

31 December 2014 6,967 19 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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 to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 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

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