Jastej Singh

14 Questions 18 Answers 0 Followers

Questions related from Jastej Singh

Reasons for different corrosion performance trend obtained for different samples evaluated using EIS, Tafel Scan and CPP test?

We have 4 different samples made of welded duplex stainless steel subjected to different aging conditions. Corrosion evaluation has been done in 3.5% NaCl solution for all the samples using...

01 January 2020 5,350 8 View

How to reveal/detect Cr2N precipitation in a duplex stainless steel weld metal?

Kindly tell how the presence of Cr2N can be detected in a duplex stainless steel weld metal. Any kinds of ideas like through XRD, Optical microscopy, SEM microscopy (with recommendation of etchant)?

06 June 2019 9,422 6 View

Which is the best etchant for revealing secondary phases like sigma, chi, nitrides apart from austenite and ferrite in a 2205 duplex stainless steel?

Looking for most suitable etchant for duplex stainless steel to reveal phases induced by thermal aging to be viewed under SEM. Kindly suggest etchant which can be used for CHEMICAL ETCHING method,...

04 April 2019 2,981 6 View

What information about a material can be obtained by EBSD technique?

Kindly share your knowledge regarding the utility of EBSD technique. What all kind of information can it provide about a material. Also please shed some light on sample size limitations and sample...

02 February 2019 8,223 2 View

Most reliable method/technique/procedure to calculate volume fraction of secondary phases?

What is the most reliable and accurate procedure to calculate the volume fraction (in %) of secondary phases induced in a material due to external conditions like welding, aging etc. THANKS AND...

02 February 2019 379 5 View

What information does FWHM from a XRD pattern reveal?

What does fwhm physically mean and what information does it reveal about a material being it smaller or relatively larger (when comparing two samples)? Thanks and kind regards

01 January 2019 7,504 8 View

How to calculate 'm' and 'C' parameters in fatigue crack growth behavior testing of metallic materials?

Into learning the data analysis part of fatigue crack growth behavior testing

12 December 2018 8,272 0 View

What information does electrochemical impedance spectroscopy (EIS) testing results reveal about a material?

What is the best source to learn EIS procedure and associated analysis of results to compare different tested samples subjected to different experimental conditions? Would be great help if...

11 November 2018 4,568 1 View

How much time does it take for a citation to reflect in google scholar database?

Thanks and kind regards

11 November 2018 1,172 1 View

How to identify austenite and ferrite phases in a duplex stainless steel sample by XRD peak analysis?

As austenite and ferrite are not compounds, how do we identify their presence. Plz enlighten me about the procedure for such XRD analysis. For example: A sample of duplex steel has only two phases...

10 October 2018 9,183 3 View

A sample with high Ecorr and relatively low Epit value versus sample with relatively low Ecorr and high Epit. Which sample is more pitting resistant?

Duplex stainless steel tested in 3.5%NaCl solution using potentiodynamic polarization method for pitting behavior.

10 October 2018 7,364 3 View

How to identify transgranular and intergranular mode of fracture by looking at SEM fractographs of impact tested materials?

Looking to ehnance knowledge in Fractography

07 July 2018 576 5 View

How to interpret da/dN vs. Delta K plots generated after fatigue crack growth tests? What is the best source to learn basics of Delta K parameter?

Want to learn interpretation of data generated by fatigue crack growth behavior testing.

07 July 2018 8,693 0 View

What is the difference between CTOD and Fatigue crack growth behavior tests?

I want to venture into testing of materials under fatigue loading and learn procedures and data interpretation.

06 June 2018 6,959 7 View