Effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels

Yong Uk Kim; Woo Sang Jung; Young Hoon Chung; S. I. Kwun

Effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels

Yong Uk Kim
, Woo Sang Jung
, Young Hoon Chung
, S. I. Kwun

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels with different nitrogen content was studied. The tensile and creep strength increased with increasing nitrogen content. The tensile strength increased due to grain refinement by Nb-rich carbonitride. The creep strength increased with increasing nitrogen content because nitrogen retarded the formation and growth rate of Cr-rich carbide and the growth rate of Nb-rich carbonitride during creep.

Original language	English
Pages (from-to)	425-428
Number of pages	4
Journal	Key Engineering Materials
Volume	385-387
Publication status	Published - 2008

Keywords

Austenitic heat resistant steels
Creep properties
Nitrogen effect
Precipitate

Cite this

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title = "Effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels",

abstract = "The effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels with different nitrogen content was studied. The tensile and creep strength increased with increasing nitrogen content. The tensile strength increased due to grain refinement by Nb-rich carbonitride. The creep strength increased with increasing nitrogen content because nitrogen retarded the formation and growth rate of Cr-rich carbide and the growth rate of Nb-rich carbonitride during creep.",

keywords = "Austenitic heat resistant steels, Creep properties, Nitrogen effect, Precipitate",

author = "Kim, \{Yong Uk\} and Jung, \{Woo Sang\} and Chung, \{Young Hoon\} and Kwun, \{S. I.\}",

year = "2008",

language = "English",

volume = "385-387",

pages = "425--428",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd.",

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T1 - Effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels

AU - Kim, Yong Uk

AU - Jung, Woo Sang

AU - Chung, Young Hoon

AU - Kwun, S. I.

PY - 2008

Y1 - 2008

N2 - The effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels with different nitrogen content was studied. The tensile and creep strength increased with increasing nitrogen content. The tensile strength increased due to grain refinement by Nb-rich carbonitride. The creep strength increased with increasing nitrogen content because nitrogen retarded the formation and growth rate of Cr-rich carbide and the growth rate of Nb-rich carbonitride during creep.

AB - The effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels with different nitrogen content was studied. The tensile and creep strength increased with increasing nitrogen content. The tensile strength increased due to grain refinement by Nb-rich carbonitride. The creep strength increased with increasing nitrogen content because nitrogen retarded the formation and growth rate of Cr-rich carbide and the growth rate of Nb-rich carbonitride during creep.

KW - Austenitic heat resistant steels

KW - Creep properties

KW - Nitrogen effect

KW - Precipitate

UR - https://www.scopus.com/pages/publications/54149107806

M3 - Article

AN - SCOPUS:54149107806

SN - 1013-9826

VL - 385-387

SP - 425

EP - 428

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Effect of nitrogen on creep properties of 22Cr-25Ni austenitic heat-resistant steels

Abstract

Keywords

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