A 65Cu-35Zn brass is heated from 300°C to 1000°C. What phases are present at each 100°C interval?
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A 65Cu-35Zn brass is heated from 300°C to 1000°C. What phases are present at each 100°C interval?
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- For a 60-40 Pb-Sn alloy, what would the percent of each phase be at 185°C and 180°C?For a 70-30 Zn-Cu alloy, what would the percent of each phase be at 800°C and 500°C?After quenching, the microconstituent in a steel with carbon concentration higher than 0.15 wt% is_________. This microstructure can be converted into ______ and _____ via tempering.
- For the alloy Mg-45 wt% Pb alloy at 500 C, what is the percentage of the liquid phase?Briefly describe how precipitation hardening happens in Al alloys (how the microstructure evolves as annealing time increases). Why it first forms q” then q’ before q is finally formed? How does the alloy’s strength change during this process? What are the strengthening mechanisms?a) Explain the normalizing process in the heat treatment of metals. b) What are the final properties obtained from the tempering process?
- Is it possible to produce a prepitication-harndend 2014 aluminium alloy hacing a minimum tensile strenght of 425 Mpa and a ductility of atleast 12%EL? if so.. specify the previpitation hear treatment. It its not possible explain why so.For a steel with a 0.2 wt%C, what is the mass fraction and composition of phases at 600 (Please draw connections on the graph)What is the% C ratio of two different steels with 80% equal and equal austenite content at 724 C?
- 8c. describe the extration of elemental composition; s from solid sample. Explain what major concern of the extration is and list two of the methods that can solve the problem?Cite the phases that are present and the phase compositions for the following alloys: 15 wt% Sn–85 wt% Pb at 100°CIf a 0.80 percent plain carbon steel is austenitized (heated to a read heat) and quenched in water to room temperatures so that the cooling curve does not cut into the “nose” of the I-T diagram, what will the resultant microstructure be?