Essays about: "Powder metallurgy steel PM steel"

Showing result 1 - 5 of 8 essays containing the words Powder metallurgy steel PM steel.

1. 1. Friction and wear study of lean powder metallurgy steel in a lubricated sliding contact

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Caroline Lejonklo; [2019]
   Keywords : Lean steel; Powder metallurgy PM ; Powder metallurgy steel PM steel ; Friction; Wear; Sliding contact; Lubricated; Porosity; Tribology; Adhesive wear; Abrasive wear; Gear; Gear tooth; Particles; Polyalphaolefin 8 PAO 8 ; Contact pressure; Density; Light optical microscopy LOM ; Scanning electron microscopy SEM ; Energy-dispersive X-ray spectroscopy EDS ; Vertical svanning interferometry VSI ; Pin on disc; Pin-on-disc;

   Abstract : A fairly new technology used to produce metallic components is powder metallurgy (PM). Among the advantages with this technique are decreased cost of production for complex-shaped parts, new alloys are made possible, reduced end processing, less material loss, and vibrational damping effects. READ MORE

3. 2. In-situ Reduction by Incorporating H2 Filled Hollow Glass Microspheres in PM HIP Capsules

   University essay from KTH/Materialvetenskap

   Author : Emil Strand; [2018]
   Keywords : Hot isostatic pressing; hollow glass microspheres; powder metallurgy; oxide reduction; surface oxides; hydrogen;

   Abstract : For many metal components the presence of hard, non-metallic inclusions such as oxides lowers the impact toughness by acting as fracture initiation points and easing crack propagation. In components produced by powder metallurgy hot isostatic pressing (PM HIP), oxides often form a continuous network of small, spherical inclusions after consolidation at the prior particle boundaries (PPB). READ MORE

4. 3. Effect of alloying elements on the hardenability of PM steels

   University essay from Malmö universitet/Teknik och samhälle

   Author : Simon Hedström; [2018]
   Keywords : ;

   Abstract : In an effort to broaden the use of powder metallurgy components to high load applications it is necessary to increase the mechanical properties. One way of doing so is to optimize the chemical composition and increase the hardenability. In this report a hardenability evaluation is performed on Astaloy™ CrA (Fe+1,8wt.%Cr) with 0,6 wt. READ MORE

5. 4. Low Temperature Creep/Relaxation Behaviour of PM Steels under Static Load

   University essay from Chalmers tekniska högskola/Institutionen för material- och tillverkningsteknik

   Author : Maheswaran Vattur Sundaram; [2014]
   Keywords : diffusion alloyed PM steels; sinterhardening; tempering; low temperature creep relaxation; dimensional stability.;

   Abstract : Powder metallurgy (PM) is one of the metal forming techniques to manufacture structural components in high volumes. Almost 70% of the PM steels produced are used in automotive applications. READ MORE

6. 5. Three-dimensional investigation of non-metallic inclusions during powder metallurgy production

   University essay from KTH/Materialvetenskap

   Author : Arkadiy Davydenko; [2012]
   Keywords : non-metallic inclusions; powder metallurgy; PM;

   Abstract : Due to growing demands for steel powder properties and continuous evolution of the powder metallurgy (PM) production it is necessary to apply new investigation technics and research applications for quality investigation of the PM products. In addition, it is important to be able to predict the probable maximum size of inclusions. READ MORE