"Air entrapment" defect in magnesium sand casting

05 May 2017 1 5K Report

Can any one explain me the reason for "air entrapment" under steel chill in magnesium sand casting?

Air entrapment takes place during filling so it does not matter if there is a chill. Also the air pocket may have been entrapped elsewhere and floated to its final location as a bubble.

Badges
Science topic

More Mohammad Mostafaei's questions See All

How can I simulate radiation of superalloy cast using ProCAST 2014 software?

When I trying to start simulation, it encounters an error and stop running and showing this message: " Unable to open input file *t.unf" How can I solve this problem??

06 July 2016 2,367 1 View

How can I simulate radiation of superalloy cast using ProCAST 2014 software?

When I trying to start simulation, it encounters an error and stop running and showing this message: " Unable to open input file *t.unf" How can I solve this problem??

06 July 2016 8,630 4 View

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...

08 August 2024 719 0 View

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...

07 August 2024 1,028 0 View

Are air moisture harvesting technologies effective in combating desertification?

Air moisture harvesting Air water collection devices

06 August 2024 5,473 2 View

What should be the sample container for the hydrothermal reaction in a microwave reactor at 180 °C for 10 min at the heating rate of 5 °C per minute?

Suggest one of them 1. Teflon-lined stainless steel autoclave: 2. Alumina (Al2O3) ceramic container

30 July 2024 7,326 1 View

Will the catalytic effect of retained austenite happens in steels including RA?

The catalytic effect of retained austenite refers to the phenomenon wherein quenching steels with a small amount of retained austenite, when subjected to tempering at a specific temperature...

27 July 2024 8,508 0 View

Please investigate the effect of temperature and strain rate of hot deformation and the formation of delta ferrite in martensitic stainless steel 410?

25 July 2024 9,408 0 View

How to saturate steel samples with hydrogen?

I have tried to saturate ferritic steel with hydrogen using the electrolytic method and H2SO4. However, the effect was very poor even after 3 days of "saturation". Can anybody help in choosing a...

24 July 2024 4,393 2 View

Why my gel electrophoresis has smearing?

Greetings. I’m currently running a nested pcr for giardia. My mastermix comprised of 3mM Mgcl2, 5unit of taq polymerase, 0.2uM of forward and reverse primers each respectively and 0.2mM of dNtp...

22 July 2024 9,761 5 View

Is there a good macro photography kit for on-site metallurgical investigation?

I am looking to purchase a photography kit for onsite metallurgical investigations, such as capturing photos of worn areas, hot tears, cold tears etc. Could anyone suggest me a good...

22 July 2024 3,490 2 View

A twin-shaft kiln or a rotary kiln for lime production 1 class? if compressive strength of limestone is low 60 MPa?

My research work is related to the calcination of limestone. I have a complex question and would like to consult with experts in this field. Could you please advise which kiln to choose (a...

18 July 2024 1,390 2 View