ASM INTERNATIONAL, CHENNAI CHAPTER
Cordially invite you for a technical talk on
A Novel and Simple NDT method (DHAMES) to
Evaluate Metallurgical properties of Steel Components
(Talk + Demo)
by
Dr V. Moorthy
Professional Engineer, School of Engineering, Newcastle University,
Newcastle upon Tyne, UK
at 6.30 PM on Saturday, 16 th December 2023
Venue: Hotel Radha Regent (Regent-2),
171, Jawaharlal Nehru Salai, Arumbakkam, Chennai-600106
Invited by:ASM Intl Chennai Chapter: Mr. N. Sampathkumar – Chairman; Dr. Sushanta Kumar Panigrahi – Secretary
About The talk:
Distortion and Harmonic Analysis of Magnetic Excitation Signal (DHAMES)
method can be used for quality evaluation (Segregate OK/ Not-OK) of
different heat-treated components, case-hardening processes in gears,
bearings and shafts, machining and grinding operations, detection of thermal
ageing of ferritic steel components.
DHAMES is a new approach for non-destructive characterization of
ferromagnetic steels. The DHAMES measurement is carried out by applying a
cyclic magnetic field to a ferromagnetic sample using an electromagnetic yoke
and analysing the distortion in the excitation voltage through a time derivative
profile known as DAME profile and measuring the amplitudes of the harmonics
of the excitation voltage signal.
About the Speaker:
Dr. V. Moorthy graduated B.E (Metallurgy) from IISc Bangalore in 1988 and
joined IGCAR Kalpakkam as Scientific Officer. After obtaining PhD from IIT,
Bombay in 2000, he went to UK for Post-doctoral Research at Newcastle
University. He has more than 30 years of experience in the field of
metallurgical analysis and has main interest in research and development of
magnetic non-destructive evaluation methods for characterization of
ferromagnetic steels.
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N. Sampathkumar
Managing Director
Ambattur Metal Treaters
Chennai
(+91) 9841035501
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