Essays about: "spheroidization"

Found 2 essays containing the word spheroidization.

  1. 1. Austenite grain growth in bearing steels : An investigation on steel grades 100Cr6 and 100 CRMnMoSi8-4-6

    University essay from KTH/Materialvetenskap

    Author : Erik Persson; [2014]
    Keywords : Grain growth; Grain size;

    Abstract : An investigation of austenite grain growth of two bearing steel grades; 100Cr6 and100CrMnMoSi8-4-6 is performed. Austenitization treatments were performed between 860°C and 1200 °C for 5 minutes to 5 hours and the grain size was determined for each sample.Grain boundary etching was carried out using a water based, picric-acid etchant. READ MORE

  3. 2. Increase the capacityof continuous annealing furnaces at Ovako

    University essay from KTH/Materialvetenskap

    Author : v Dahlqvist; [2012]
    Keywords : Soft annealing; spheroidization; heat treatment; OVAKO; capacity ncrease; productivity; continuous furnace; normalization; isothermal annealing; quench and tempering; tubemill; COMSOL; simulation.;

    Abstract : The capacity of soft annealing of low alloyed tubes at Ovako’s continuous annealing furnaces have been evaluated by comparing how it is done today with information from published and internal articles on the subject. It was found that it is possible to reduce the cycle time by 30 % for one furnace, 55 % for one furnace and 72 % for two furnaces. READ MORE