Metallurgy Interview Questions
Questions Answers Views Company eMail

Why do metallurgy engineers so sucessfull in their profession so that they dont think beyond their dreams?

Magnum,

5 7397

What do you do with the super alloys in the present working culture so as to improve the technology for general people?

Magnum,

2 3910

What is meant by powder metallurgy?

4 6318




Isn't power metallurgy an expensive processing route to employ?

TATA, JSW,

2 3492

What special precautions need to be employed if a powder metallurgy route is chosen?

1 3692

Why are the superalloys sometimes subjected to secondary melting processes?

1 1814

When might secondary melting processes be unnecessary?

2 2797

Why do the Gamma Prime and Gamma Double Prime phases play such an important role in promoting strength in the superalloys?

1 5449




What happens to the microstructure during service exposure?

1346

Why do some of the latest 'single crystal' superalloys contain concentrations of the grain boundary strengthening elements, e.g. carbon and boron?

1030

What is Vacuum Induction Melting ?

3 3645

The processes used to fabricate the superalloys seem fairly mature. Is much process development going on?

2 2799

How can Residual stresses in superalloy components can be minimised?

1 3036

Is it possible to design heat treatment processes such that a gradient in grain size is produced?

4 3637

What is investment casting?

3 4616


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Un-Answered Questions { Metallurgy }

Do you know define what metal might be considered the “most environmental”? I say aluminum because it can be recycled others on my team say brass.

98


A plain carbon steel contains 45 wt% of proeutectoid ferrite. Define what is its average carbon content in weight percent? I know that you need to use a tie line in the phase diagram, but my book does not really give a good example to go by

23


The stress concentration is caused due to ?

44


Define what is the grain size of lead as an element and as an alloy such as lead tin alloy?

27


For the same part, it is possible to Specify the two different type of Hardness with same scall(EX-Quenching and tempering==>450 to 500HV30 & Hardening and Austempering 330- 380HV30)

1405






When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.

20


what medal conducts heat best?

20


What is the composition of d2?

31


Define boring.

51


What is the atomic density of ceramics?

29


How is solution annealing carried out? What type of furnace is required?

24


Which is stronger, tungsten or titanium?

21


what is the grain size of lead as an element and as an alloy such as lead tin alloy?

24


Is there a possibility of inducing stress cracking in an insulated stainless road tanker vessel (20 tonne capacity) if the vessel is subject to rapid filling (10 tonne /hr) with liquid methane (-160 c) assuming the vessel is at ambient. If so, where could I obtain suggested cooling rates?

76


is nickel considered a non-sparking metal?

26