Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 351
e or no effect group themselves into crystals — if the quiet of the mass is not disturbed by ex- will be produced, no matter how long the bars remain in contact with the car- traneous forces ; and the slower the temperature is suffered to fall to the bon ; it is very probable that the tem- point b… … The power of steel to become granu- strength or toughness is the first object lar may be graphically illustrated thus : sought. I say that it is better to obtain On our scale of temperatures o, a, b, c, steel of a finely crystalline structure, be- a curved line rises from the point b, and cause…
Engineering
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