Browsing Journal Articles by Author "Ivanchev, L"

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Effect of Pre/Post T6 Heat Treatment on the Mechanical Properties of Laser Welded SSM Cast A356 Aluminium Alloy

Author: Akhter, R ; Ivanchev, L ; Burger, HP Date: Feb 2007 Aluminium alloy A356 was treated by the Rheo semi solid metal (SSM) process, developed recently by CSIR-Pretoria, and cast in plates using a high pressure die casting (HPDC) machine. Plates in as cast condition (F) and heat treated T6 condition ... Read more
Evaluation of HEBM Mechanical Alloying of Al2O3— 356/7075 Powder Mixture

Author: Govender, G ; Ivanchev, L ; Burger, H ; Mulaba, A ; Chikwanda, H Date: Apr 2012 Particle reinforced aluminium alloy metal matrix composites (MMC) have proven to be one of the advanced materials capable of replacing conventional structural alloys. However, the demand for such materials has been confined to high cost ... Read more
Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology

Author: Akhter, R ; Ivanchev, L ; Van Rooyen, Corney ; Kazadi, BP ; Burger, HP Date: 2006 Samples of aluminium alloy A356 were manufactured by Semi Solid Metals HPDC technology, developed recently in CSIR, Pretoria. They were butt welded in as cast conditions using as Nd: YAG laser. The best metal and weld microstructure were ... Read more
Opportunities and challenges for use of SSM forming in the aerospace industry

Author: Chou, HN ; Govender, G ; Ivanchev, L Date: 2006 SSM is now considered an established technology to produce high integrity near net shape components for the automotive industry in particular. Although it is used extensively in the automotive industry, very little attention has been given ... Read more
Optimisation of the solution heat treatment of Rheo-processed Al-Cu-Mg-(Ag) Alloys A206 and A201

Author: Masuku, EP ; Moller, H ; Knutsen, R ; Ivanchev, L ; Govender, G Date: Jun 2009 The traditional solution treatment cycles that are currently applied to rheo-processed A201 are mostly those that are used for conventional castings. These solution treatments are not necessarily the optimum solution treatments for rheo-processing. ... Read more
Rheo-processing of semi-solid metal alloys: a new technology for manufacturing automotive and aerospace components

Author: Ivanchev, L ; Wilkinson, D ; Govender, G ; Du Preez, W ; Bean, R Date: 2008 The latest trend in the automotive industry to produce fuel-efficient vehicles has resulted in the increased use of aluminium and magnesium alloys. Liquid metal high pressure die-casting (HPDC) currently satisfies the bulk of the automotive ... Read more
Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing

Author: Ivanchev, L ; Camagu, ST ; Govender, G Date: Oct 2012 There are two main technologies for manufacturing of particulate reinforced metal matrix composites (MMC), solid state and liquid state processing. The great challenge of producing cast metal matrix composites is to prevent agglomeration of ... Read more
Wear of semi-solid rheocast SiCp/Al metal matrix composites

Author: Curle, UA ; Ivanchev, L Date: Sep 2010 Rheocasting of plates in Al alloy 359 reinforced with SiC at 11%, 27% and 50% (volume fractions) exhibits the capability of the council for scientific and industrial research-rheocasting system (CSIR-RCS) in rheo-processing and high pressure ... Read more

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Browsing Journal Articles by Author "Ivanchev, L"

Browsing Journal Articles by Author "Ivanchev, L"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect