Casting defects

What is the difference between chunky and Spiky graphite in ductile iron?

05 June 2017 2,978 0 View

How Lead(Pb) contamination in cast iron causes widmanstatten graphite (Type F)? Can anyone explain the theory behind it?

Foundry, Cast Iron.

01 February 2016 2,340 0 View

Name standard softwares which follows AFS for image analysis of SG Iron (Ductile Iron) for determining the Nodularity and nodul count in cast Iron?

AFS,Ductile Iron society,Cast Iron

01 February 2016 2,182 0 View

What are the major casting defects an occure in Aluminum A319 and A356 alloy?

Aluminum casting

31 December 2015 3,910 5 View

How we can eliminate the interference in XRF analysis because of matrix and grain size for alloys?

How we can eliminate the interference in XRF analysis because of matrix and grain size for alloys? ICDD, BRUKER, REGAKU

31 December 2015 1,909 2 View

What are the cheap sources of Magnesium for production of Ferro silicon Magnesium by the Induction furnace route?

11 December 2015 7,007 1 View

How can I differentiate the Blow hole and shrinkage in Ductile iron Casting by using the Chemical analysis by EDS/SEM?

Ductile Iron Society, AFS

11 December 2015 6,573 4 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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Can I use TCA instead of TFA for protein analyis in RP-HPLC?

I am trying to analyze lipase using the reverse phase-HPLC C18 column. In the literature, 0.1 % TFA was and 60% ACN was used. Can I use TCA in place of TFA? If any other methods are available to...

25 February 2021 2,388 3 View