What are suitable reagents for color eching of AISI 304 stainless steel?

More Hossein Ahmadi's questions See All

Is there a process for changing crystalline silicon nanostructures or nanoparticles to amorpous silicon which is going to be used in Li ion batteries?

Amorphous silicon has lower volumetric change than crystalline silicon during first cycles of charge and discharge. How can we prepare amorpous silicon from nanostructured crystalline silicon? Is...

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How to clean copper surface before coating process?

What are suitable reagents for removing oxide layer and grease or organic impurities from copper surface before the coating process?

07 August 2019 2,913 4 View

How to leach Fe impurities out of Silicon Suspension?

High energy ball milling used to prepare silicon micro and nano particles. I used magnetic separation to remove iron. But there is a small amount of iron left in the suspension. How can I remove...

06 July 2019 4,269 2 View

How to calculate density of a coating layer?

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06 July 2019 6,846 4 View

What are flow lines?

Does anyone knows a reference book that describes this phenomena? Are flow lines and shear bands the same or they're different from each other? why flow lines appear in micro structure? (Attached...

01 February 2018 3,036 0 View

Why second phase particles cluster during cold work?

In the attached picture, rolling direction is from bottom to the top(vertical).

01 February 2018 1,905 0 View

Can grain structure be revealed using SEM?

can we see the grains and grain boundaries without using any etching procedure by SEM?

11 December 2017 7,982 2 View

What is the main reason for edge cracking of aluminum alloys during cold rolling?

sheet edge geometry change, workability limitation or something else?? Does anyone have studied about that?

09 October 2017 4,589 3 View

Can Quench and Partitioning heat treatmnet(Q/P) improve the impact energy of AISI 4140 steel?

08 September 2017 3,443 0 View

Does anyone know the best temperature for quench and best temperature for partitioning in Quench and Partitioning heat treatment of AISI 4140 steel?

I need to achieve maximum impact energy and hardness at the same time.Any experiment or reliable article??

08 September 2017 9,764 2 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

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Can someone suggest a way to prepare slides to observe under confocal microscope for observing fluorescent tagged proteins??

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01 March 2021 6,142 3 View

How we can measure Kemp % in wool without using of benzene?

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What is difference between In-line transmission (%) and Total transmission (%) value of optically transparent Ceramics?

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Troubleshooting with immunofluoresence/confocal microscope? What went wrong?

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In your experience what is the difference between G.652D and G.655D optical fiber. In field and in lab?

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I am looking for a microbend optical sensor design...can anyone please provide me some idea about it??

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Feature Tracking in Python?

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What is the reason of the received optical signal to be slimmed down in multi-mode fiber?

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In your view, which current SEM is most recommended for EBSD/TKD and EDS analysis?

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Neetesh Soni

Dear , for 316 SS you can read article link it will help you .

Ref: https://ac.els-cdn.com/S0026057601852764/1-s2.0-S0026057601852764-main.pdf?_tid=fca26bda-9b20-4f58-a7f7-9497f2c9e255&acdnat=1543782949_a6448dfd5f04d62ba9120ba8b90ccc7b

this is all refrernces but if you want to use ASTM then follow this one

Standard E407-07 of ASTM.

Darshan Kare Gowda

Dear Mr. Ahmadi,

Beraha Ⅱ colour etchant (800 ml water + 400 ml HCl + 48 g NH4FHF, Ammonium bi fluoride). You should use it fresh.

Maryam Soleimani

Dear. In this paper the researcher used some colorful etchant for 304 stainless steel.