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

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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 5,377 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 9,443 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 3,003 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 407 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 8,248 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 7,556 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

11 December 2018 8,297 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...

10 November 2018 4,603 1 View

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

Thanks and kind regards

10 November 2018 1,209 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 9,281 3 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

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How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

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How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

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1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

Is there anyone with experience in TEM analysis who can assist with a manuscript for an upcoming journal?

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Can you suggest reliable sources defining "3D mesh" and "3D city models"?

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06 August 2024 9,986 2 View

Weak DAPI staining after immunohistochemistry - how to improve?

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Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

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05 August 2024 454 3 View

Vladimir Dusevich

If you can see grains with flat facets, its intergranular fracture, otherwise it is transgranular one.

https://www.google.com/search?q=intergranular+fracture+sem&hl=en&rlz=1C1OPRB_enUS553US553&tbm=isch&source=iu&ictx=1&fir=ura94TRiY1xRaM%253A%252CVFMyRVn-SGt2gM%252C_&usg=__iyuARn1gBlas-Y_QeMxAC2zHTaI%3D&sa=X&ved=0ahUKEwjAy8Lp27DcAhVo5YMKHciCA9UQ9QEIMjAB#imgrc=ura94TRiY1xRaM:

Thomas Walther

Hi Vladimir, you mean intra-, not intergranular, I assume?

I meant intergranular. May be I had to use word "smooth", not "flat" facets, to avoid confusion with flat facets with river patterns. Anyway, link to pictures I provided should clear possible confusion.

Florian Glodeanu

Do you refer somehow to transgranular and intergranular (not intragranular) fracture?

For transgranular fracture SEM images see: https://www.google.ro/search?q=transgranular+fracture&rlz=1C1GCEA_enRO802RO802&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiqj4eyzLTcAhUM1oMKHbl6BnsQsAQIYg&biw=1229&bih=608

Jastej Singh

Yes. I should have written intergranular.