×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Porosity in Cast Irons
2

Porosity in Cast Irons

Porosity in Cast Irons

(OP)
What are the process parameters which can cause porosity in cast irons ( Grey,CGI,Ductile)? I want to know general trends during casting (excluding mold design,ingate system, chills etc). I am more intrested in

1- Effect of chemical composition of charge, treatment alloys on porosity (macro and micro)?
2- Effect of Temperatures on porosity (?)

It is a miracle that curiosity survives formal education.[Albert Einstein]

RE: Porosity in Cast Irons

I suggest you purchase "Analysis of Casting Defects" and/or
"Casting Defects Handbook" from American Foundry Society (AFS).

RE: Porosity in Cast Irons

2
Is this more an assignment question? If not I request you to provide more specific details .

Chocolates,men,coffee: are somethings liked better rich!!
(noticed in a coffee shop)

RE: Porosity in Cast Irons

(OP)
Its just a question :). As i said i want to know general trends. If you want me to tell you the chemistry of the charge, furnace type, tapping temperatures, treatment type, etc then it will definitely become an assignment for me :).

As i said i want to know the trends which cause the porosity in cast irons (Grey,ductile, cgi). for example

1- what is the effect of carbon equivalent on porosity?
2- which type of iron are more vulnerable to porosity between hyper and hypo eutectic irons?

3- What is the effect of Magnesium on porosity ( in case of ductile and cgi )
etc.
 

It is a miracle that curiosity survives formal education.[Albert Einstein]

RE: Porosity in Cast Irons

CGI,
Appreciate your response. However, the information that you are seeking are mostly available in most of the text books on cast iron metallurgy. Else, if you can find some mentor in your industry,it is good.

There are a number of variables affecting the incidence of porosities in cast iron.Also grey iron and ductile iron do not have similarities and ductile iron is more prone to shrinkage defects.

Other than carbon equivalent, charge used, type of melting, post inoculation methods, mold variety,section thickness of casting all affect soundness of castings.

Hence if you have a particular case,which is causing problems,please submit more details and I am sure you will get useful responses from our ever helpful members.

Chocolates,men,coffee: are somethings liked better rich!!
(noticed in a coffee shop)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources