Products of eutectoid iron-carbon alloy

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Reference no: EM13948256

1. Name the microstructural products of eutectoid iron-carbon alloy (0.76 wt% C) speci- mens that are first completely transformed to austenite, then cooled to room temperature at the following rates: (a) 1°C/s, (b) 20°C/s, (c) 50°C/s, and (d) 175°C/s.

2. Figure 10.40 shows the continuous cooling transformation diagram for a 0.35 wt% C iron-carbon alloy. Make a copy of this figure and then sketch and label continuous cooling curves to yield the following microstructures:

(a) Fine pearlite and proeutectoid ferrite

(b) Martensite

(c) Martensite and proeutectoid ferrite

(d) Coarse pearlite and proeutectoid ferrite

(e) Martensite, fine pearlite, and proeutec- toid ferrite

Reference no: EM13948256

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