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INTER-METAL

Scientific Cooperation

Since 2010, we have been closely cooperating with the Institute of High Pressure Physics of the Polish Academy of Sciences implementing scientific projects serving the development in the field of hydrostatic extrusion.

You can find more information about this fascinating way of strengthening the materials and Institute’s scientific work at www.hydroextrusion.pl

Currently, together with the Institute, we are conveying a project co-financed from the European Union budget under the Operational Program 'Intelligent Development' for the years 2014-2020 entitled "Ultra durable fasteners with increased durability for the transport, mining and medical industries"

As a part of the project, Our company is responsible for the implementation and production of probe parts of fasteners of low mass and increased strength intended for following industries: transport, aerial, construction and medical

The aim of the project is to develop a new generation of high-strength fasteners (with large dimensions and increased durability) from strongly fortified aluminum alloys and titanium for heavy duty applications. Strengthening of materials carried out on the path of large plastic deformations by high-pressure methods of hydrostatic extrusion and pressing through an equiaxial angle channel.

The above project is in a way a continuation of our earlier research collaboration focused on the properties of austenitic steels and changes in the nanocrystalline structure after the hydrostatic extrusion process.

The result of joint search of solutions for issues related to the innovative use of material created in this process were articles published in renowned scientific journals. The main production engineers, and at the same time the company co-founders and owners, Mr. Wiesław Fąfara and Mr. Mirosław Radomski, are co-authors of the article "Nanostructurization of 316L type austenitic stainless steels by hydrostatic extrusion" published by the Elsevier scientific publishing house in the 'Materials, Science and Engineering Journal'.

 

Here is a sample of that innovative article:

Nanostructurization of 316L type austenitic stainless steels by hydrostatic extrusion

Authors W.Pachlaa.SkibaaM.KulczykaS.PrzybyszaM.PrzybyszaM.WróblewskaaR.DiduszkobR.StępniakcJ.BajorekdM.RadomskieW.Fąfarae

https://www.sciencedirect.com/science/article/pii/S0921509314009368?via%3Dihub

 

Abstract

The study is concerned with the influence of severe plastic deformation applied to 316L type stainless steels using cold hydrostatic extrusion and rotary swaging on their microstructure, mechanical properties, physical properties, and thermal stability. Both, the nano-grain refinement (to 50 nm) and dislocation hardening achieved in 316L steel after subjecting it to one-pass extrusion with true strain of about 1.5 resulted in an increase of the strength to the ultra-high value i.e. above 1300 MPa and moderate ductility >13%. This was accompanied by the superior thermal stability UTS=800 MPa at 600 °C. Compared to the wire drawingprocess, hydrostatic extrusion gave better structural homogeneity which was however destroyed by subsequent swaging after which the hardness of the core increased up to 470 HV0.2. The applicative potential of nanostructurized 316L-type stainless steels is discussed and illustrated by two examples namely 316LVM medical implants for surgical osteosynthesis and 316L high-strength fixing components.

Inter-Metal sp.j.  |  26-600 Radom  |  ul. Lubelska 69/71  |  tel. +48 48 365 61 85  |  fax +48 48 365 52 95  |  e-mail: info@inter-metal.com.pl

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