Author
A. Karimi Taheri
Other affiliations: Delft University of Technology, Iran University of Science and Technology, McGill University
Bio: A. Karimi Taheri is an academic researcher from Sharif University of Technology. The author has contributed to research in topics: Equal channel angular extrusion & Strain rate. The author has an hindex of 30, co-authored 99 publications receiving 2698 citations. Previous affiliations of A. Karimi Taheri include Delft University of Technology & Iran University of Science and Technology.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the growth rate of intermetallic compounds at the interface of cold roll bonded Al / Cu bimetal at 2508C was compared with a similar study performed on friction welding of Al to Cu.
350 citations
TL;DR: In this article, the formability of an aluminum-clad steel sheet was measured using the Erichsen cupping test technique and the results indicated that there is an optimum annealing temperature and time leading to a high bonding strength as well as enhanced formability.
163 citations
TL;DR: In this article, the effects of annealing temperature and time on mechanical properties and bond strength of aluminum clad steel sheet are evaluated, and the results indicate that there exist an optimum annesaling temperature for achieving a suitable formability and bonding strength between the clad layer and base metal.
146 citations
15 Jul 2010-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, equal channel angular pressing (ECAP) was used before and after various aging treatments in order to strengthen a commercial 6082 Al alloy, and experiments were carried out to study the strengthening of the alloy due to pre and post-ECAP aging treatment.
Abstract: Equal channel angular pressing (ECAP) was used before and after various aging treatments in order to strengthen a commercial 6082 Al alloy. Experiments were carried out to study the strengthening of the alloy due to pre and post-ECAP aging treatment. It was found that aging before and after ECAP processing is an effective method for strengthening of the alloy. An increase in both strength and ductility of the ECAPed specimen was achieved via appropriate post-aging treatment. This was in such a manner that for maximal strengthening, post-ECAP aging is best conducted at temperatures lower than those usually used for aging if prior work hardening is not undertaken. Pre-ECAP aging was also discussed in the light of dislocation density and work hardening.
101 citations
TL;DR: In this article, the effect of carbon and silicon on the occurrence of dynamic recrystallization as well as on the flow stress of steel was investigated, and three grades of steels including low carbon, medium carbon and high silicon low carbon steel were examined.
87 citations
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28 Sep 2014
TL;DR: This paper presents an experimental study of parameter design and tolerance design for dynamic characteristics in the context of Offline and online quality control.
Abstract: Contents: Variety and Quality. Variability loss and tolerance. Determining tolerances. Tolerance design and experimental design. Offline and online quality control. Parameter design and tolerance design: case study. Experimental design for smaller is better characteristics. Experimental design for larger is better characteristics. Bypassing the S/N ratio: spring experiment. Experimental design for dynamic characteristics.
672 citations
TL;DR: In this article, the double-differentiation method was used to define the critical strain for initiation of DRX and the net softening attributable to DRX was then defined as the difference between the σrecov and experimental curves.
480 citations
10 Jan 2013-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the relationship between microstructural features, mechanical, chemical, and physical properties, as well as the innovation potential of the SPD-produced nanostructured Al alloys are discussed.
Abstract: In recent years, much progress has been made in the studies of nanostructured Al alloys for advanced structural and functional use associated both with the development of novel routes for the fabrication of bulk nanostructured materials using severe plastic deformation (SPD) techniques and with investigation of fundamental mechanisms leading to improved properties. This review paper discusses new concepts and principles in application of SPD processing to fabricate bulk nanostructured Al alloys with advanced properties. Special emphasis is placed on the relationship between microstructural features, mechanical, chemical, and physical properties, as well as the innovation potential of the SPD-produced nanostructured Al alloys.
455 citations
TL;DR: In this article, the temperature distribution and microstructural evolution of the friction stir welding of 6061 aluminum alloy (T6-temper condition) to copper are investigated. But the main focus of the work is on the microstructures of the weld.
372 citations
TL;DR: In this paper, a review of the machining of titanium and its alloys and potential research issues is presented. But, the focus shift of market trends from military to commercial and aerospace to industry has also been reported.
Abstract: Titanium and its alloys are attractive materials due to their unique high strength-weight ratio that is maintained at elevated temperatures and their exceptional corrosion resistance. The major application of titanium has been in the aerospace industry. However, the focus shift of market trends from military to commercial and aerospace to industry has also been reported. On the Other hand, titanium and its alloys are notorious for their poor thermal properties and are classified as difficult-to-machine materials. These properties limit the use of these materials especially in the commercial markets where cost is much more of a factor than in aerospace. Machining is an important manufacturing process because it is almost always involved if precision is required and is the most cost effective process for small volume production. This paper reviews the machining of titanium and its alloys and proposes potential research issues.
317 citations