Ashish Lisu

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Ashish lisuIron

Asked: August 29, 2022In: Physical Metallurgy & Heat treatment

How do we get Martensitic start and finish temperature?

How do we get Martensitic start and finish temperature?

How do we get Martensitic start and finish temperature?

Ashish lisuIron

Asked: July 9, 2021In: Thermodynamics & Rate Processes

Why do the curves converge at the end points with ideal solution curve in raoults law?

Ashish lisuIron

Asked: July 9, 2021In: Thermodynamics & Rate Processes

What is raoults law? plot it( activity vs atom fraction). also show deviation in real situations.

Ashish lisuIron

Asked: July 8, 2021In: Corrosion

if a metallic bottle is half filled then corrosion will start from which part of bottle?

Ashish lisuIron

Asked: July 8, 2021In: Corrosion

can corrosion be reduced by applying impressed current to a pipeline in which water is continuously flowing?

Ashish lisuIron

Asked: July 8, 2021In: Mechanical Metallurgy

in cold working or hot working, for which process residual stresses will be more in the final product and why? why Cold working have better surface finish?

Ashish lisuIron

Asked: July 8, 2021In: Welding Technology

what is the difference between TIG and other welding process and in which process heat loss will be more and why? which welding process is suitable for thin sheets welding?

Ashish lisuIron

Asked: July 8, 2021In: Corrosion

At which temperature oxidation corrosion occur?

Ashish lisuIron

Asked: July 8, 2021In: Corrosion

what type of corrosion occurs in sea water and in steam boilers?

Ashish lisuIron

Asked: July 8, 2021In: Mineral Processing & Non-ferrous Metallurgy

what is pidgeon process? why is fero silicon Used in pidgeon process instead of pure silicon? what effect does Fe has on the process? in p

Ashish lisuIron

Asked: July 8, 2021In: Thermodynamics & Rate Processes

if lines of two different metal oxidation in ellingham diagram do not intersect each other, i.e they are parallel, then is metallothermic reduction possible?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

if lines of two different metal oxidation in ellingham diagram do not intersect each other, i.e they are parallel, then is metallothermic reduction possible?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

What is age hardening? explain process for age hardening a material. what happens if we age the material for a very long time?

Ashish lisuIron

Asked: July 8, 2021In: Mechanical Metallurgy

how do fatigue failure occur even if the applied stress is below yield stress?

Ashish lisuIron

Asked: July 8, 2021In: Mechanical Metallurgy

how does alloying element help in strengthening?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

which grains shows the higher hardness, courser one or finer and why?

Ashish lisuIron

Asked: July 8, 2021In: Welding Technology

In arc welding how heat is transferred to the metal piece?

Ashish lisuIron

Asked: July 8, 2021In: Corrosion

Why mild Steel has lower susceptibility to crevice corrosion than Stainless Steel? if Stainless Steel is replaced with mild steel then what will happen?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

in case of solid solution strengthening which one is more effective, interstitial atom or substitutional atom, why?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

draw isomorphous phase diagram and draw its G vs X diagram.

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

You are assuming nuclei to be spherical while writing equation, why nuclei takes spherical form in solidification?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

write equation for change in Gibbs free energy during solidification?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

Why there is requirement of undercooling in real situation? Will this undercooling remain same throughout the solidification?

Ashish lisuIron

Asked: July 8, 2021In: Physical Metallurgy & Heat treatment

draw G vs T diagram for solidification?

Ashish lisuIron

Asked: July 8, 2021In: Welding Technology

how different type of residual stress generates during different welding thermal cycle? how different type of residual stress generates during rolling process?

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