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

12 December 2018 0 8K Report

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

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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...

31 December 2019 5,291 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)?

05 June 2019 9,352 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,...

03 April 2019 2,892 6 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...

01 February 2019 321 5 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...

01 February 2019 8,132 2 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

31 December 2018 7,247 8 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...

10 November 2018 4,510 1 View

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

Thanks and kind regards

10 November 2018 1,090 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...

09 October 2018 9,040 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.

09 October 2018 7,283 3 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View