Overly of ERCuAl-A2 over low alloy steel

• Apr 29, 2025

• #2

mfgenggear

Aerospace

Jan 23, 2008

3,608

US

Nanda Kishore Kandregula said:

Dear team,
We have a requirement of cladding ERCuAl-A2 over low alloy steel (40mm thk) , how ever during initial trials we have found failure of samples in transverse bend test

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What was the hardness of alloy steel?
What process was used for cladding

 

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• Apr 30, 2025

• Thread starter
• #3

N

Nanda Kishore Kandregula

Materials

Apr 29, 2025

3

Hardness ranges between 250 - 270HV and welding carried by using GTAW process.

 

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• Apr 30, 2025

• #4

weldstan

Materials

Jun 24, 2011

2,808

US

Was your first layer a pure nickel overlay then followed by the ERCuAl-A2?

 

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• Apr 30, 2025

• Thread starter
• #5

N

Nanda Kishore Kandregula

Materials

Apr 29, 2025

3

Noo... We directly used ERCuAl-A2, any barrier layer required?

 

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• Apr 30, 2025

• #6

mfgenggear

Aerospace

Jan 23, 2008

3,608

US

Nanda Kishore Kandregula said:

Noo... We directly used ERCuAl-A2, any barrier layer required?

Click to expand...

What is the purpose of the clad?
Gtaw will have gone beyond the heat treat temper.

 

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• May 1, 2025

• #7

weldstan

Materials

Jun 24, 2011

2,808

US

The Ni barrier layer would help.

 

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