Effects of insoluble carbide on microstructure and hardness of martensitic stainless steels

Toshihiro Tsuchiyma, Setsuo Takaki, Sadayuki Nakamura

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Effects of insoluble carbide on the microstructure and hardness of martensitic stainless steels were investigated in 12%Cr-(0.1approx.0.4%)C steels. In high carbon steels, carbide does not dissolve into austenite fully at a solution treatment temperature around 1300K and the insoluble carbide affects the mechanical properties of martensite at room temperature. By means of hardness testing in specimens solution-treated at different temperatures (T ; K), the solubility of carbon in austenite ([C] ; mass%)was given by the equation ; log [C] = -6100/T + 4.1. The relation between volume fraction of insoluble carbide (F ; vol%) and carbon content of steels (C ; mass%) was given by the equation ; F = 20(C-[C]) by taking the densities of carbide and martensite into consideration. The contribution of insoluble carbide was added to the hardness of martensite matrix, so that the hardness of martensitic steels with insoluble carbide (Hv) was represented by the equation ; Hv = 25 + 1250√[C] + 500(C-[C]).

Original languageEnglish
Pages (from-to)938-943
Number of pages6
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume80
Issue number12
DOIs
Publication statusPublished - Jan 1 1994

Fingerprint

martensitic stainless steels
Martensitic stainless steel
carbides
Carbides
hardness
Hardness
microstructure
Microstructure
martensite
Martensite
steels
austenite
Austenite
Carbon steel
Carbon
Hardness testing
Martensitic steel
carbon
Steel
carbon steels

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Effects of insoluble carbide on microstructure and hardness of martensitic stainless steels. / Tsuchiyma, Toshihiro; Takaki, Setsuo; Nakamura, Sadayuki.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 80, No. 12, 01.01.1994, p. 938-943.

Research output: Contribution to journalArticle

@article{a0b7b68f1d2e4c18b1f8706f9a149911,
title = "Effects of insoluble carbide on microstructure and hardness of martensitic stainless steels",
abstract = "The Effects of insoluble carbide on the microstructure and hardness of martensitic stainless steels were investigated in 12{\%}Cr-(0.1approx.0.4{\%})C steels. In high carbon steels, carbide does not dissolve into austenite fully at a solution treatment temperature around 1300K and the insoluble carbide affects the mechanical properties of martensite at room temperature. By means of hardness testing in specimens solution-treated at different temperatures (T ; K), the solubility of carbon in austenite ([C] ; mass{\%})was given by the equation ; log [C] = -6100/T + 4.1. The relation between volume fraction of insoluble carbide (F ; vol{\%}) and carbon content of steels (C ; mass{\%}) was given by the equation ; F = 20(C-[C]) by taking the densities of carbide and martensite into consideration. The contribution of insoluble carbide was added to the hardness of martensite matrix, so that the hardness of martensitic steels with insoluble carbide (Hv) was represented by the equation ; Hv = 25 + 1250√[C] + 500(C-[C]).",
author = "Toshihiro Tsuchiyma and Setsuo Takaki and Sadayuki Nakamura",
year = "1994",
month = "1",
day = "1",
doi = "10.2355/tetsutohagane1955.80.12_938",
language = "English",
volume = "80",
pages = "938--943",
journal = "Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan",
issn = "0021-1575",
publisher = "一般社団法人 日本鉄鋼協会",
number = "12",

}

TY - JOUR

T1 - Effects of insoluble carbide on microstructure and hardness of martensitic stainless steels

AU - Tsuchiyma, Toshihiro

AU - Takaki, Setsuo

AU - Nakamura, Sadayuki

PY - 1994/1/1

Y1 - 1994/1/1

N2 - The Effects of insoluble carbide on the microstructure and hardness of martensitic stainless steels were investigated in 12%Cr-(0.1approx.0.4%)C steels. In high carbon steels, carbide does not dissolve into austenite fully at a solution treatment temperature around 1300K and the insoluble carbide affects the mechanical properties of martensite at room temperature. By means of hardness testing in specimens solution-treated at different temperatures (T ; K), the solubility of carbon in austenite ([C] ; mass%)was given by the equation ; log [C] = -6100/T + 4.1. The relation between volume fraction of insoluble carbide (F ; vol%) and carbon content of steels (C ; mass%) was given by the equation ; F = 20(C-[C]) by taking the densities of carbide and martensite into consideration. The contribution of insoluble carbide was added to the hardness of martensite matrix, so that the hardness of martensitic steels with insoluble carbide (Hv) was represented by the equation ; Hv = 25 + 1250√[C] + 500(C-[C]).

AB - The Effects of insoluble carbide on the microstructure and hardness of martensitic stainless steels were investigated in 12%Cr-(0.1approx.0.4%)C steels. In high carbon steels, carbide does not dissolve into austenite fully at a solution treatment temperature around 1300K and the insoluble carbide affects the mechanical properties of martensite at room temperature. By means of hardness testing in specimens solution-treated at different temperatures (T ; K), the solubility of carbon in austenite ([C] ; mass%)was given by the equation ; log [C] = -6100/T + 4.1. The relation between volume fraction of insoluble carbide (F ; vol%) and carbon content of steels (C ; mass%) was given by the equation ; F = 20(C-[C]) by taking the densities of carbide and martensite into consideration. The contribution of insoluble carbide was added to the hardness of martensite matrix, so that the hardness of martensitic steels with insoluble carbide (Hv) was represented by the equation ; Hv = 25 + 1250√[C] + 500(C-[C]).

UR - http://www.scopus.com/inward/record.url?scp=0028740706&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028740706&partnerID=8YFLogxK

U2 - 10.2355/tetsutohagane1955.80.12_938

DO - 10.2355/tetsutohagane1955.80.12_938

M3 - Article

AN - SCOPUS:0028740706

VL - 80

SP - 938

EP - 943

JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

SN - 0021-1575

IS - 12

ER -