Essays about: "Prior austenite grain boundaries"
Found 3 essays containing the words Prior austenite grain boundaries.
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1. Experimental Methodologies for Analyzing Austenite Recrystallization in Martensitic Tool Steels
University essay from KTH/MaterialvetenskapAbstract : Revealing the prior austenite grain boundaries from a martensitic structure is well known to be very difficult and dependent on the chemical composition and the thermomechanical processing of the steel. In the present study, four different chemical etching reagents and additional thermal etching have been conducted for thermomechanical simulated tool steels Orvar Supreme and Stavax ESR. READ MORE
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2. Austenite grain growth in bearing steels : An investigation on steel grades 100Cr6 and 100 CRMnMoSi8-4-6
University essay from KTH/MaterialvetenskapAbstract : 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
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3. The effect of prior austenite grain size on the machinability of a pre-hardened mold steel. : Measurement of average grain size using experimental methods and empirical models.
University essay from Avdelningen för maskin- och materialteknikAbstract : The use of pre-hardened mold steels has increased appreciably over the years; more than 80% of the plastic mold steels are used in pre-hardened condition. These steels are delivered to the customer in finished state i.e. there is no need of any post treatment. READ MORE
