. Transactions. Fig. 1.—Case of normal steel; 5 per Fig. 2.—Case of .\bnormal steel- CENT. PICRIC-ACID ETCH. X 100. SPECIMEN PACKED WITH STEEL SHOWN IN Fig. 1. X 100. 346 EFFECT OF QUALITY OF STEEL ON CASE-CARBURIZING RESULTS. Fig. 3.—Sectiox of hypereutectoidzone ix normal steel, finely lamellar PEARLITE; note MANGANESE-SULFIDE IN-CLUSION THROUGH CEMENTITE BOUNDARYOF TWO LARGE CRYSTALS. EtCHED WITH5 PER CENT. PICRIC ACID. X 200. Fig. 4.—Section of hypereutectoidzone in .\bnormal steel) note ridgesof heavy cementite in masses ofFERRiTE. Etched with 5 per cent. PICRIC ACID. X 200. t », ^ x7K, -
. Transactions. Fig. 1.—Case of normal steel; 5 per Fig. 2.—Case of .\bnormal steel- CENT. PICRIC-ACID ETCH. X 100. SPECIMEN PACKED WITH STEEL SHOWN IN Fig. 1. X 100. 346 EFFECT OF QUALITY OF STEEL ON CASE-CARBURIZING RESULTS. Fig. 3.—Sectiox of hypereutectoidzone ix normal steel, finely lamellar PEARLITE; note MANGANESE-SULFIDE IN-CLUSION THROUGH CEMENTITE BOUNDARYOF TWO LARGE CRYSTALS. EtCHED WITH5 PER CENT. PICRIC ACID. X 200. Fig. 4.—Section of hypereutectoidzone in .\bnormal steel) note ridgesof heavy cementite in masses ofFERRiTE. Etched with 5 per cent. PICRIC ACID. X 200. t », ^ x7K, -1
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
