Shear test are applied to these kind parts. However it can be required design and production of special test apparatus for use with universal tensile and compressing test machines.

Thanks Dr. Kerem

I need to know more, except: Shear test or torsion test, SEM, EDS (line scan).

Refer the link:https://books.google.co.in/books?id=kf_tCAAAQBAJ&pg=PA14&lpg=PA14&dq=tests+are+recommended+to+perform+on+the+diffusion+bonded+metals&source=bl&ots=iab1uj0-C2&sig=iK3g4SOgMI7N-GDRkPfAi4QCORc&hl=en&sa=X&ved=0CCIQ6AEwAWoVChMIxKDvrYfCyAIV2FuOCh0fjwZA#v=onepage&q=tests%20are%20recommended%20to%20perform%20on%20the%20diffusion%20bonded%20metals&f=false

By appropriate sequence of turning and milling you may fabricate (from your two-layered material) a glass-like sample where the bottom of material A has a less diameter than an upper "tube" of material B. Then, if you put the sample on a simple support, the test is punching out the bottom on a simple compression-tension machine. The related critical force is readily represented in terms of tensile strength for the bonding layer.

The test method described by A. Zisman is called RAM-tensile test. You may find articles about it as it allows pure tensile strength tests on surface welded plates (diffusion bonded, brazed or explosion clad).

See figure 2 in attached article

Ultasonic testing of the bonded metals will also provide information about unbounded detached area's of the sample