FORMATION OFδ-PHASE IN AUSTENITIC STEELS

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Acta Metallurgica Sinica (English Letters) ›› 1995, Vol. 8 ›› Issue (3): 199-203.

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FORMATION OFδ-PHASE IN AUSTENITIC STEELS

YANG Ruzeng; DAI Qixun (Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China Manuscript received 10 January, 1995)

Received:1995-06-25 Revised:1995-06-25 Online:1995-06-25 Published:2009-10-10

Abstract

Abstract: The relationship between the γ/(γ+δ) boundary temperature Tδ of austenitic steels and the equivalent weights of [Crl and [Ni] and the variation rule of the δ—phase volume with the temperature are studied With the aid of computer,the regressives expression derived from the experimental results are Tδ(℃) = T4 -21.2[Cr] +15.8[Ni]-223. Vδ(%)=0.715 exp 0.015(T-Tδ).

Key words: austenitic steel, structure stability, δ-phase, γ/γ + δboundary

YANG Ruzeng; DAI Qixun (Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China Manuscript received 10 January, 1995). FORMATION OFδ-PHASE IN AUSTENITIC STEELS[J]. Acta Metallurgica Sinica (English Letters), 1995, 8(3): 199-203.

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FORMATION OFδ-PHASE IN AUSTENITIC STEELS

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