Causes for failure analysis of trunnion part in ingot mold?

Jayaprakash Polamarasetty @Jayaprakash-Polamarasetty

02 August 2023 1 6K Report

lifting lug on ingot mold is broken. What is procedure for failure analysis?

A starting point is - was it a brittle fracture or a ductile failure? Usually can tell from visual inspection. Also can you run a sample through a Charpy V notch or other testing?

What alloy was it?

What is past history?

Was a heat treatment involved? (probably not with an ingot)

Any extraordinary loads? My father ran into a case where fins were breaking off a casting as a worker was hitting the casting with a sledgehammer to "remove the sand".

Badges
Science method

More Jayaprakash Polamarasetty's questions See All

How to calculate the dissociation energy of the oxides per unit volume?

I have prepared a Erbium Doped Borate glass and I am working on calculations of Elastic Moduli of the glass. I have referred some of the articles but I couldn't understand how they have...

23 May 2024 5,707 0 View

Can someone explain the procedure for Calculating Judd Ofelt Parameters?

I'm working on a project related to Luminescence Properties of Rare Earth Glasses (not Europium). I have read some articles related to Judd Ofelt Parameters, but I couldn't able to understand the...

26 March 2024 2,287 0 View

Why is my GELMA opaque?

I have been trying to synthesize high methacrylation GELMA using the following protocol : Precise Tuning of Facile One-Pot Gelatin Methacryloyl (GelMA... However, I find that my GELMA is very...

24 March 2024 1,070 2 View

Why is my GELMA hydrogel degrading in two days ?

Hi, I synthesized GelMA using carbonate buffer and maintained the pH at 9 throughout the synthesis. The carbonate buffer was made with MilliQ water. Subsequently dialysis was done using MilliQ...

28 January 2024 2,011 0 View

How can one calculate the refractive index from the absorbance data of the glass?

I have conducted an experiment on the UV Absorption Spectrum for my glass samples and I have obtained the Absorbance values for the corresponding wavelengths. Unfortunately, I did not measure the...

17 December 2023 5,071 3 View

Why fcc metal will not undergoes ductile to brittle transition temperature?

the fcc metal are not undergoing DBTT but bcc & hcp will undergoing and how it is happening

10 September 2023 6,550 0 View

How to find oxygen level(ppm) of solid ingot?

explain theory and formula for calculating oxygen level in solid ingot. During pouring of liquid metal into ingot mold, after solidification, forging and heat treatment operation to know oxygen...

06 September 2023 248 0 View

What is delta glaze?

why delta glaze is applying to titanium ingot before starting an forging operation

06 September 2023 8,716 0 View

How anti-flacking cycle is created in heat treatment?

what is the formula is used for creating a anti flacking cycle

20 August 2023 2,117 1 View

What is relationship between ultimate test vs load capacity of lcf test machine?

according to A606 code specified that to carry out low cycle fatigue test machine capacity should minimum 45kn-100kn. why load capacity of machine is specified.

20 August 2023 7,156 1 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

What may be the reasons for failures of Tube toi Tube Sheet Joints in Boiler Drum ?

We have observed that tube to tube sheet joint leaked in our boiler and needs to overcome same by knowing the root cause.

08 August 2024 3,161 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View