M
M. Ahmad
Researcher at Pakistan Institute of Nuclear Science and Technology
Publications - 52
Citations - 1051
M. Ahmad is an academic researcher from Pakistan Institute of Nuclear Science and Technology. The author has contributed to research in topics: Scanning electron microscope & Microstructure. The author has an hindex of 18, co-authored 44 publications receiving 876 citations. Previous affiliations of M. Ahmad include Pakistan Institute of Engineering and Applied Sciences.
Papers
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Journal ArticleDOI
Effect of ultrasonic welding parameters on microstructure and mechanical properties of dissimilar joints
Muhammad Shakil,Muhammad Shakil,Naeem ul Haq Tariq,M. Ahmad,M. A. Choudhary,Javed Akhter,S. Suresh Babu +6 more
TL;DR: In this article, an optimization of ultrasonic spot welding parameters for joining 3003 Aluminum alloy with 304 Stainless steel was performed at various clamping pressures and energy levels for investigating its effect on microstructure, mechanical properties and bond quality of the weld.
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Microstructure and hardness studies of electron beam welded Inconel 625 and stainless steel 304L
Muhammad Shakil,Muhammad Shakil,M. Ahmad,Naeem ul Haq Tariq,B.A. Hasan,Javed Akhter,Ejaz Ahmed,Mazhar Mehmood,M.A. Choudhry,M. Iqbal +9 more
TL;DR: In this article, electron beam welding of dissimilar Inconel 625 and SS 304L alloys was successfully performed by employing optimized beam welding parameters, the welded joint was characterized using SEM/EDS, XRD and micro-hardness tester.
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Microstructure and hardness studies of the electron beam welded zone of Hastelloy C-276
TL;DR: In this paper, a scanning electron microscope (SEM) having the attachment of an energy dispersive system (EDS) has been employed to study the resulting microstructure and micro-eutectic phases.
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Structural and electrical properties of polyaniline/silver nanocomposites
Asma B. Afzal,Asma B. Afzal,Muhammad Javed Akhtar,Muhammad Nadeem,M. Ahmad,M.M. Hassan,Tariq Yasin,Mazhar Mehmood +7 more
TL;DR: In this article, a polyaniline (PANI)/Ag nanocomposites were prepared by separate synthesis of silver nanoparticles by inert gas condensation, incorporating in the 1-methyl-2-pyrrolidinone (NMP) solution of PANI and then cast into films at 120°C.
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Microstructure evolution during surface alloying of ductile iron and austempered ductile iron by electron beam melting
TL;DR: In this article, surface modification of as-received ductile iron, Ni-plated ductile and austempered ductile materials was carried out by electron beam melting to improve the surface properties.