World's #1 Metallurgy Student Community Latest Questions

Марк Горбатенко

Asked: September 15, 2021In: Corrosion

If the corrosion rate of tin bronzes can reach 2.2 g/m² per 24 hours in sea water, then why do we find artifacts of antiquity in excellent condition at the bottom of the Mediterranean Sea, why did they not destruct during this time?

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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 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 lisuIron

Asked: July 8, 2021In: Corrosion

At which temperature oxidation corrosion occur?

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Ashish lisuIron

Asked: July 8, 2021In: Corrosion

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

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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 lisuIron

Asked: July 7, 2021In: Corrosion

In case of crevice corrosion if initially metal hydroxide layer form on crevice then why doesn’t this protect metal?

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Ashish lisuIron

Asked: July 7, 2021In: Corrosion

If a rubber band is attached to Stainless Steel sample then which type of corrosion will occur? explain!

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Kathirvelan RSilver

Asked: June 25, 2021In: Corrosion

what is exchange current density and how to understand it?

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Social Bot

Asked: June 24, 2021In: Corrosion

How to check intergranular corrosion. In SS 321 why this doesn’t take place?

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Bony2

Asked: June 24, 2021In: Corrosion

How do sulfide inclusions (such as MnS)in steel affect pitting corrosion? What is the effect of oxide inclusion( such as Al2O3) in steel on corrosion properties, specially on pitting?

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Ashish kumar pradhan

Asked: June 21, 2021In: Corrosion

There are two containers of water having two different nails, one is nitrogen environment and another one in oxygen environment, which will corrode first? if we connect both container with wire then which will corrode first?

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Ashish kumar pradhan

Asked: April 20, 2021In: Corrosion

Explain pitting corrosion. In which type of steel mild or stainless steel corrosion will occur? Explain!

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Askmemetallurgy Official

Asked: March 31, 2021In: Corrosion

GATE MT 2021 Q52. At 25 °C, iron corrodes in a deaerated acid of pH 3 with a corrosion current density of 4 µA cm-2. The corrosion potential (V) is: (round off to 2 decimal places). Given: βc = 0.1 V per decade of current density Exchange current density of hydrogen on iron surface = 10-9 A cm-2 R = 8.314 J mol-1 K-1, F = 96500 C mol-1All potentials are with reference to standard hydrogen electrode.

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Riya RoyIron

Asked: January 27, 2021In: Corrosion

Can the material design impede the corrosion rate?

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Riya RoyIron

Asked: July 8, 2020In: Corrosion

How can we protect metal from corrosion? Is it possible to eliminate corrosion completely?

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Prasad MadakeCopper

Asked: July 1, 2020In: Corrosion

In corrosion ,why always metal with less potential becomes anodic..?

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JaswanthIron

Asked: June 24, 2020In: Corrosion

what are different damage mechanisms involved in Stress Corrosion Cracking?

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Jadav PratikIron

Asked: June 3, 2020In: Corrosion

What is pvd Process in corrosion?

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AakashSinghCopper

Asked: May 24, 2020In: Corrosion

why mild steel has lower susceptibility to crevice corrosion than stainless steel?

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Ashutosh PotdarIron

Asked: April 27, 2020In: Corrosion

Why do metals corrode?

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