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Hydrogen Embrittlement determination

How to prove that the defective samples such as screw, bolt, threaded bar and nut failed because of hydrogen embrittlement? What kind of test can be done for this purpose? Thanks.

Lim Wei Heong
- Gurun,Kedah,West Malaysia
2002

2002

A few tests proposed by ASTM, you could refer their publication for detail methodology.

Thanks,

Chee Hong, Lee
- Singapore

There is a simple test called Head Soundness Test. The Test specifies that the screw head is hit by a hammer, so as to bend up to 10 degree and there should be no breakage or crack.

D.B.Prabhu Ram
- India
2002

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