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Sault Ste. Marie, Canada

Hebert G.,Essar Steel Algoma Inc. | Dube D.,Laval University | Tremblay R.,Laval University
Materials Science and Engineering A | Year: 2012

Fatigue failure affects the majority of materials in various applications and is particularly detrimental to aluminium alloys which do not present a well-defined endurance capacity. With the growing use of aluminium castings in automotive industry and several other fields, it is important to compare the fatigue strength of components produced by different moulding processes. In this study, thin-walled components of aluminium A383.0 alloy were moulded using four industrial casting processes: die casting, vacuum die casting, squeeze casting, and permanent mould casting (gravity casting). Bending fatigue strength and tensile properties of the cast components were then compared according to their surface roughness and microstructural characteristics. © 2012 Elsevier B.V.

Zhou T.,McMaster University | Zhang P.,Essar Steel Algoma Inc. | O'Malley R.J.,Missouri S&T | Zurob H.S.,McMaster University | Subramanian M.,McMaster University
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science | Year: 2014

In order to achieve a fine uniform grain-size distribution using the process of thin slab casting and directing rolling (TSCDR), it is necessary to control the grain-size prior to the onset of thermomechanical processing. In the companion paper, Model Fe-Al Steel with Exceptional Resistance to High Temperature Coarsening. Part I: Coarsening Mechanism and Particle Pinning Effects, a new steel composition which uses a small volume fraction of austenite particles to pin the growth of delta-ferrite grains at high temperature was proposed and grain growth was studied in reheated samples. This paper will focus on the development of a simple laboratory-scale setup to simulate thin-slab casting of the newly developed steel and demonstrate the potential for grain size control under industrial conditions. Steel bars with different diameters are briefly dipped into the molten steel to create a shell of solidified material. These are then cooled down to room temperature at different cooling rates. During cooling, the austenite particles nucleate along the delta-ferrite grain boundaries and greatly retard grain growth. With decreasing temperature, more austenite particles precipitate, and grain growth can be completely arrested in the holding furnace. Additional applications of the model alloy are discussed including grain-size control in the heat affected zone in welds and grain-growth resistance at high temperature. © 2014, The Minerals, Metals & Materials Society and ASM International.

Essar Steel Algoma Inc. and Algoma Steel Inc. | Date: 1998-01-27

structural and wear-resistant steel beams, columns, shaped structural members and plates.

Essar Steel Algoma Inc. | Date: 2004-11-19

structural and wear resistant steel plates; steel products for manufacturing yellow goods and mining equipment; steel products, namely, sheets, strips for making tubes and pipes, plates, slabs, architectural columns, plate, hot rolled sheet and strip, cold rolled sheet and strip, skelp for making pipes and tubes, heat treated plate, floor plate, first stage blanks for making finished goods. manufacture of metal and steel shapes to order and/or specification of others for automotive and industrial equipment applications.

Essar Steel Algoma Inc. and Algoma Steel Inc. | Date: 2005-12-13


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