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Askmemetallurgy

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Askmemetallurgy Latest Questions

Ashish lisu
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?

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Ashish lisu
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?

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Ashish lisu
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.

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Corrosion

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

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Corrosion

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

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Ashish lisu
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?

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Ashish lisu
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?

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Corrosion

At which temperature oxidation corrosion occur?

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Corrosion

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

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Ashish lisu
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

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Ashish lisu
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?

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Ashish lisu
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?

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Ashish lisu
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?

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Mechanical Metallurgy

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

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Mechanical Metallurgy

how does alloying element help in strengthening?

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

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

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Ashish lisu
Ashish lisuIron
Asked: July 8, 2021In: Welding Technology

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

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Ashish lisu
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?

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Ashish lisu
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?

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

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

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Ashish lisu
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?

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

write equation for change in Gibbs free energy during solidification?

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Ashish lisu
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?

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

draw G vs T diagram for solidification?

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Ashish lisu
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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