Metallurgy Interview Questions
Questions Answers Views Company eMail

What kind of shell systems are used for investment casting?

2 3641

Why are the superalloys used for land-based turbines?

1 3110

What kind of components are fabricated from the superalloys, and what are their roles?

2 3387

What kinds of NDT methods are available?

10 14967

Why is non-destructive testing necessary?

9 14161

What are the superalloys?

3 7650

What are the superalloys used for?

2 4723

what is the cause of attenuation due to powerloss

1 3825

what happens when a EM wave is transmitted

1 4033

Please send me the comparision of Mils Steel Specification as per BS EN 10130 & IS 2062

1 3477

What metal would be better suited for heat transfer, reliability, and cost...??? I'm currently using Aluminum for a 'hot-wedge'.

3 4998

i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect

IOCL,

2456

what are the ores of copper?

4 5643

I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

Novellus,

1884

any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.

Novellus,

1790


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Un-Answered Questions { Metallurgy }

What is combine power generation?

599


Define what is the difference between diagrams of it and ct in heat treatment of steels?

565


Why we are doing post heating in alloy steel welding?

595


What is carbon steel ?

581


1)We are using OHNS material for manufacturing Thread & plain Gauges.What is the excat composition of OHNS for Gauges? 2)Which is the reference standard book for OHNS Material composition for Gauges?

4348






Describe strain aging based on dislocation theory?

523


Define what are the properties and application of manganese steel?

656


We make aluminum moulds by press casting, can u suggest any thing so that the moulds should shine after casting?

484


Define grinding.

674


What is power metallurgy?

492


sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you

1613


carnot cycle has maximum efficiency for ?

595


What is the help of crowning on pulleys

516


The moment of inertia of an area is always least with respect to ?

760


Which metal is the best conductor of heat?

505