(d) Discuss the possible influence of the cla ratio on the difficulty of basal slip (Hint: your statement should inciude the ideal cla ratio of HCP crystal structure). (3%)

(c) You are requested to make a cast iron with volume percent of graphite in 14%. Additionally, the cast iron should consist of a martensite matrix where graphite is embedded. Calculate the proper carbon concentration, and describe the treatment necessary to produce such this microstructure. Assume densities of 7.87 and ferrite and graphite, respectively. (4%)

題組內容

(d) Discuss the possible influence of the cla ratio on the difficulty of basal slip (Hint: your statement should inciude the ideal cla ratio of HCP crystal structure). (3%)

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