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Influence of homogenizing annealing on reducing the content of δ-ferrite in high-strength high-chromium martensitic steel grade 07Kh15N5D4B obtained by selective laser alloying
https://doi.org/10.22349/1994-6716-2021-106-2-47-54
Abstract
The work studies effects of temperature – time parameters of homogenizing annealing and related structural changes on the content of δ-ferrite in high-chromium martensitic steel grade 07Kh15N5D4B, obtained by selective laser alloying. It is shown that homogenizing annealing at a temperature of 1150°C with a holding time for 8 hours reduces the content of δ-ferrite, eliminates the cellular structure, and also increases the strength properties of the above-mentioned steel.
Keywords
high-chromium martensitic steel,
selective laser alloying,
homogenizing annealing,
δ-ferrite content
Supporting agencies: Experimental studies were performed on the equipment of the Center for Collective Use “Composition, Structure and Properties of Structural and Functional Materials” of the NRC “Kurchatov Institute” – CRISM “Prometey”
About the Authors
M. I. Olenin
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
Dr. Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
A. D. Kashtanov
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
Dr. Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
О. N. Romanov
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
Cand Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
V. V. Makhorin
NRC Kurchatov Institute – CRISM Prometey
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
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Review
For citations:
Olenin M.I., Kashtanov A.D., Romanov О.N., Makhorin V.V. Influence of homogenizing annealing on reducing the content of δ-ferrite in high-strength high-chromium martensitic steel grade 07Kh15N5D4B obtained by selective laser alloying. Voprosy Materialovedeniya. 2021;(2(106)):47-54. (In Russ.) https://doi.org/10.22349/1994-6716-2021-106-2-47-54
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