STUDY OF PHASE TRANSFORMATION IN MARTENSITIC STAINLESS STEEL AISI 422 DURING CONTINUOUS COOLING

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GHANBARI S.; AMINI K.; SHAFYEI A.; SOLTANI M.A.

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Journal: JOURNAL OF NEW MATERIALS Year:2016 | Volume:6 | Issue:2 (22) Page(s): 79-90

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Title

STUDY OF PHASE TRANSFORMATION IN MARTENSITIC STAINLESS STEEL AISI 422 DURING CONTINUOUS COOLING

Author(s)

GHANBARI S. | AMINI K. | SHAFYEI A. | SOLTANI M.A. | Issue Writer Certificate

Keywords

PHASE TRANSFORMATIONQ2

DILATOMETERYQ2

STEEL AISI 422Q2

CCT DIAGRAMQ2

Abstract

In this research the behavior of the STEEL AISI 422 has been investigated during the various continuous cycle of cooling in dilatometer and CCT DIAGRAM has been obtained. The standard test samples were prepared in accordance with the requirements of the standard Dilatometers SEP 1681 in cylinders with a diameter of 4 mm and length of 10 mm. In the dilatometer test, heating the samples were conducted in controlled vacuum atmosphere. The results showed that after reaching the austenitizing temperature of 1040oC, holding time of 15 minutes , cooling time of 5, 15, 30 minutes, 1, 3, 6, 12 and 18 hours, martensite was formed in range of 238-300oC. Colling In 24, 36 and 48 hours, pearlite phase was formed. The start temperature range of this transformation was 472-621oC and the final temperature rang of perlite transformation was 367-504oC. The martensite transformation for this cooling times was 300-310oC. In the cooling time of 36 hours, the bainite phase was formed in the temperature rang of 402-451oC. The results of this steel's hardenability test showed high hardenability and the jominy curve showed constant line.

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APA: Copy

GHANBARI, S., AMINI, K., SHAFYEI, A., & SOLTANI, M.A.. (2016). STUDY OF PHASE TRANSFORMATION IN MARTENSITIC STAINLESS STEEL AISI 422 DURING CONTINUOUS COOLING. JOURNAL OF NEW MATERIALS, 6(2 (22)), 79-90. SID. https://sid.ir/paper/169730/en

Vancouver: Copy

GHANBARI S., AMINI K., SHAFYEI A., SOLTANI M.A.. STUDY OF PHASE TRANSFORMATION IN MARTENSITIC STAINLESS STEEL AISI 422 DURING CONTINUOUS COOLING. JOURNAL OF NEW MATERIALS[Internet]. 2016;6(2 (22)):79-90. Available from: https://sid.ir/paper/169730/en

IEEE: Copy

S. GHANBARI, K. AMINI, A. SHAFYEI, and M.A. SOLTANI, “STUDY OF PHASE TRANSFORMATION IN MARTENSITIC STAINLESS STEEL AISI 422 DURING CONTINUOUS COOLING,” JOURNAL OF NEW MATERIALS, vol. 6, no. 2 (22), pp. 79–90, 2016, [Online]. Available: https://sid.ir/paper/169730/en

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