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  • Characterization of Nickel Diffusion and its Effect on the ...

     · Admixing pure elements to powder mixes can cause the formation of heterogeneous microstructures in sintered parts. For instance, nickel is renowned for forming nickel-rich areas (NRA) in powder metallurgy (PM) nickel steels due to its poor diffusivity in iron matrix (or lattice). The present work is aimed at characterizing the principal diffusion mechanisms of nickel and their influence on ...

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  • Machinability Characterization of P/M Materials

    The base powders used in the second case study were ATOMET 29 and ATOMET 29M, the latter grade contains hexagonal boron nitride as a machinability enhancer. The drilling thrust force and torque were evaluated on F-0005 disc specimens with sintered densities ranging from 6.80 to 6.90 g/cm3. Table 1 . Typical Characteristics of the MnS Grades ...

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    Parts (1) Powder metallurgy (1) Authors. Chagnon, François (1) Gagné, Martin (1) St-Laurent, Sylvain (1) Tremblay, Linda (1) Publishers. SAE (1) Affiliations. Quebec Metal Powders, LTD (1) Rio Tinto Iron and Titanium-Technology (1) ... Abstract/scope. Citation. DOI. Submit. Add to Select a project to save the publication to: ...

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  • Euro Pm 2013 | Sintering | Alloy

    Euro Pm 2013 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. PM 2013

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    Products. We supply the metals and minerals used to help the world grow. We also want to pioneer a more sustainable future, and believe we can be part of the solution: from helping to develop technology that can make the aluminium smelting process entirely free of direct GHG emissions, to providing the world with the materials it needs – such ...

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    Abstract; Author(s) Topic(s) Citations; References This content is not included in your SAE MOBILUS subscription, or you are not logged in. Export Print. Share Add to Preview Check My Access! Purchase: $33.00. Green Machining Of P/M Parts Using Enhanced …

  • Machinability of Sinter-hardening PM ...

    Maryam Moravej1, Francois Chagnon1, Philippe Francois2 . 1 Rio Tinto Metal Powders, Tracy, Quebec, Canada . 2 Rio Tinto Metal Powders, Eschborn, Germany . Abstract . Although powder metallurgy is an economical method for production of near net shape components, machining operations are often required to deliver desired geometrical features ...

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  • ABSTRACT

    Martin Gagné* and François Chagnon** *Rio Tinto Iron & Titanium Inc.-Technology **Québec Metal Powders Ltd Tracy, Québec, Canada. Paper submitted for presentation at 1998 World P/M Conference, Granada, Spain, October 1998. ABSTRACT Manganese sulphide powder is added as a machinability enhancer to ferrous powder mixes destined to powder-

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     · Adding the forces between the two original particles and the intermediate one we obtain: (3) F " VdW = A D '' 1 + D '' 2 / 12 z o 2 Which leads to: (4) F Total VdW = F '' VdW + F " VdW = AD / 12 2 z o + d 2 + A D '' 1 + D '' 2 / 12 z o 2 Eq. and Fig. 1b show that Van der Waals inter-particular forces decrease with an increase of the diameter of the intermediate particle up to a ...

  • Improving Green Strength to Enable Green Machining

    François Chagnon, Linda Tremblay and Sylvain St-Laurent Quebec Metal Powders LTD Martin Gagné Rio Tinto Iron And Titanium-Technology ... ABSTRACT Although powder metallurgy (P/M) is a cost attractive route to manufacture near net shape complex parts, many P/M …

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  • Looking for lean-alloy PM steels with performance and ...

     · A novel approach to nickel-free lean alloy PM steels was presented by François Chagnon in a paper co-authored by Lydia Aguirre, both with Rio Tinto Metal Powders. In this work, Mn-Cr-Mo steels were synthesized by mixing together pre-alloyed Mo-containing steel powder with ferro-alloys containing Mn or Cr, plus a new carbon master-alloy.

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  • Euro PM2013 Technical Programme-20 May S | Sintering | Steel

    Rio Tinto Metal Powders. Rio Tinto Metal Powders (RTMP, formerly QMP) 1655, Route Marie-Victorin, Sorel-Tracy, (Quebec) J3R 4R4 Canada. Contact : Jean-Marc Borel T 0049 6196 9600 0 F 0049 6196 481 762 W / Stand: 9

  • On the Optimization of Compressibility and Hardenability ...

     · Characterization of Density and Flow Rate. Flow rate and apparent density were measured for each powder blend using a Hall flowmeter apparatus (according to MPIF standards 3 and 4, respectively[5,6]) pressibility was characterized according to MPIF standard 45 as the pressure required to reach a green density of 6.8 g/cm 3.[] Finally, green strength was measured by a three …

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  • Rio Tinto and Metalsinter S.r.l investigate high ...

     · Research engineers at Rio Tinto Metal Powders, Canada, and Metalsinter S.r.l, Italy, have been working closely to optimise the compaction stage of the Powder Metallurgy process. In order to increase productivity in component production, the use of a high-performance premix has been reported as a method to increase compaction speed, whilst ...

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  • European Powder Metallurgy Association (EPMA)

    Powder Metallurgy . What is Powder Metallurgy? Economic Advantages; Quality Criteria; Mechanical Properties; Powder Metallurgy Process . Powder Manufacture; Conventional Processing ; Metal Injection Moulding; Hot Isostatic Pressing; Additive Manufacturing; Other Shape Methods; Powder Metallurgy Products; Spotlight on PM Case Studies . Case ...

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  • Titanium Dioxide

    Rio Tinto Titanium and Titanium Dioxide. Titanium dioxide is a very white, opaque compound, used as a pigment in paints, plastics and paper. It is also used to produce toothpaste, sunscreen and cosmetics. Most of our titanium production is destined for the automotive industry, which uses it to manufacture complex mechanical parts.

  • 40 years of forward thinking pays off again for QMP ...

     · As a leading producer of iron and steel powders for PM and other applications, Quebec Metal Powders (QMP) has maintained a global outlook since it began manufacturing operations nearly 40 years ago. Its iron and steel powders and premixes are exported to markets worldwide. In addition to developing powder grades for every significant ...

  • Rio Tinto opens new US $5 million metal powder annealing ...

     · Rio Tinto has confirmed the opening of a new metal powder annealing facility in Suzhou, China. The US $5 million investment will expand Rio Tinto''s metal powder capacity by 8,000 tonnes a year and help meet demand from China''s rapidly developing market. "The opening of this plant is an important milestone for Rio Tinto''s Iron & Titanium ...

  • PM Review Summer 2015 by Inovar Communications

    Rio Tinto Metal Powders discussed two developments aimed at offering leaner alloy variants. ... MPIF (and summarised in Powder Metallurgy Review, Winter 2014) [19] F Chagnon and C Cosana, 2012 ...

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    François Chagnon, Linda Tremblay and Sylvain St-Laurent Quebec Metal Powders, LTD Martin Gagné Rio Tinto Iron and Titanium-Technology ... ABSTRACT Although powder metallurgy (P/M) is a cost attractive route to manufacture near net shape complex parts, many P/M …

  • New Iron Powder for Low Density Applications

    PM2010 World Congress – Water Atomized Powders Manuscript refereed by Mr John Dunkley, Atomising Systems Ltd New Iron Powder for Low Density Applications François Chagnon Rio Tinto Metal Powders 1655 Marie-Victorin Sorel-Tracy Quebec, Canada J3R 4R4 ABSTRACT

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