Mpi can be used only on ferromagnetic materials. It can detect subsurface defects.
DPI can be used on any material. It can detect only the defects which are open to the surface.
On Tue, Jun 29, 2010 at 5:35 PM, mohammed helal <eng_hilal79@yahoo.com> wrote:
The major difference is the DPI is only for the defects that open to the surface and the MPI for the subsurface defect ( 6 mm deep).
Eng.MOHAMMED ABD EL-AZIM HILALMECHANICAL ENGINEERCSWIP 3.1 - NDT (RT- MT - PT)OTISHAN CONSULTANT ENGINEER00966-502612218 - 0020103124557
--- On Tue, 6/29/10, george.dilintas@gr.bureauveritas.com <george.dilintas@gr.bureauveritas.com> wrote:
From: george.dilintas@gr.bureauveritas.com <george.dilintas@gr.bureauveritas.com>
Subject: Re: [MW:5791] MPI vs DPI
To: "materials-welding" <materials-welding@googlegroups.com>
Date: Tuesday, June 29, 2010, 7:06 PM
Mpi can be used only on ferromagnetic materials
----- Original Message -----
From: Amir Zakee Adnal [amirzakee@gmail.com]
Sent: 29/06/2010 16:52 ZE5
To: materials-welding@googlegroups.com
Subject: [MW:5787] MPI vs DPI
Dear all
What is/are major difference between MPI and DPI? Can MPI be
substitute with DPI? Is there any code or standard that allow such
substitution?
Regards,
Amir Zakee
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