ELECTRON MICROSCOPE STUDY ON δ EUTECTOID IN HIGH SPEED STEEL

Acta Metall Sin

1991, Vol. 27

Issue (5): 66-69 DOI:

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ELECTRON MICROSCOPE STUDY ON δ EUTECTOID IN HIGH SPEED STEEL

SHI Gongqi;DING Peidao;ZHOU Shouze Chongqing University

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SHI Gongqi;DING Peidao;ZHOU Shouze Chongqing University. ELECTRON MICROSCOPE STUDY ON δ EUTECTOID IN HIGH SPEED STEEL. Acta Metall Sin, 1991, 27(5): 66-69.

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Abstract The morphology and structure of δ eutectoid and the transformation of δ austenite in high speed steel have been studied under SEM and TEM. The δ eutectoid in as-cast high speed steel is rod-shaped eutectoidic units with different orientations and is markedly surrounded by carbide shell. The eutectoidic carbide is rod-shaped M_6C of square cross section. The eutectoid austenite may transform into pearlite structure during cooling.

Key words: high speed steel eutectoidic carbide eutectoidic austenite

Received: 18 May 1991

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1991/V27/I5/66

Kuo K. J Iron Steel Inst, 1955; 10: 128--134
2 Riedl R, Jeglitsch F, Loecker K-D. Pract Metallogr, 1986; 23: 374--399 石功奇,重庆大学硕士学位论文, 1987

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