CALORIMETRIC ANALYSIS OF AGING REACTION IN FERRITIC AND MARTENSITIC STAINLESS STEEL.

Setsuo Takaki, Youichi Tokunaga

Research output: Contribution to journalArticle

Abstract

The aging reactions of brittle and martensitic iron alloys containing 11-30%Cr and 0-10%Co, and 13% Cr maraging steel containing Co and Mo have been investigated. The specific heat versus temperature curves of high Cr ferritic and martensitic alloys are characterized by an evolution peak due to the formation of Cr-rich zones in the temperature range between 330 and 540 degree C, and an absorption peak due to reversion in the temperature range between 500 and 590 degree C. The amount of evolution increases with increasing content of not only Cr but also Co. The addition of Co promotes the formation of Cr-rich zones resulting in 475 degree C embrittlement. In 13% Cr maraging steel, another evolution peak due to precipitation of an intermetallic compound containing Mo appears in the temperature range between 520 and 660 degree C. Mo as well as Cr forms rich zones in the temperature range between 330 and 540 degree C on the specific heat versus temperature curve.

Original languageEnglish
Pages (from-to)1169-1175
Number of pages7
JournalNippon Kinzoku Gakkai-si
Volume45
Issue number11
Publication statusPublished - Jan 1 1981

Fingerprint

martensitic stainless steels
ferritic stainless steels
Martensitic stainless steel
Aging of materials
maraging steels
Maraging steel
Temperature
Specific heat
temperature
specific heat
embrittlement
iron alloys
Iron alloys
Embrittlement
curves
Intermetallics
intermetallics

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

CALORIMETRIC ANALYSIS OF AGING REACTION IN FERRITIC AND MARTENSITIC STAINLESS STEEL. / Takaki, Setsuo; Tokunaga, Youichi.

In: Nippon Kinzoku Gakkai-si, Vol. 45, No. 11, 01.01.1981, p. 1169-1175.

Research output: Contribution to journalArticle

Takaki, Setsuo ; Tokunaga, Youichi. / CALORIMETRIC ANALYSIS OF AGING REACTION IN FERRITIC AND MARTENSITIC STAINLESS STEEL. In: Nippon Kinzoku Gakkai-si. 1981 ; Vol. 45, No. 11. pp. 1169-1175.
@article{c1fdd495f32645db8127b259420f13c6,
title = "CALORIMETRIC ANALYSIS OF AGING REACTION IN FERRITIC AND MARTENSITIC STAINLESS STEEL.",
abstract = "The aging reactions of brittle and martensitic iron alloys containing 11-30{\%}Cr and 0-10{\%}Co, and 13{\%} Cr maraging steel containing Co and Mo have been investigated. The specific heat versus temperature curves of high Cr ferritic and martensitic alloys are characterized by an evolution peak due to the formation of Cr-rich zones in the temperature range between 330 and 540 degree C, and an absorption peak due to reversion in the temperature range between 500 and 590 degree C. The amount of evolution increases with increasing content of not only Cr but also Co. The addition of Co promotes the formation of Cr-rich zones resulting in 475 degree C embrittlement. In 13{\%} Cr maraging steel, another evolution peak due to precipitation of an intermetallic compound containing Mo appears in the temperature range between 520 and 660 degree C. Mo as well as Cr forms rich zones in the temperature range between 330 and 540 degree C on the specific heat versus temperature curve.",
author = "Setsuo Takaki and Youichi Tokunaga",
year = "1981",
month = "1",
day = "1",
language = "English",
volume = "45",
pages = "1169--1175",
journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",
issn = "0021-4876",
publisher = "公益社団法人 日本金属学会",
number = "11",

}

TY - JOUR

T1 - CALORIMETRIC ANALYSIS OF AGING REACTION IN FERRITIC AND MARTENSITIC STAINLESS STEEL.

AU - Takaki, Setsuo

AU - Tokunaga, Youichi

PY - 1981/1/1

Y1 - 1981/1/1

N2 - The aging reactions of brittle and martensitic iron alloys containing 11-30%Cr and 0-10%Co, and 13% Cr maraging steel containing Co and Mo have been investigated. The specific heat versus temperature curves of high Cr ferritic and martensitic alloys are characterized by an evolution peak due to the formation of Cr-rich zones in the temperature range between 330 and 540 degree C, and an absorption peak due to reversion in the temperature range between 500 and 590 degree C. The amount of evolution increases with increasing content of not only Cr but also Co. The addition of Co promotes the formation of Cr-rich zones resulting in 475 degree C embrittlement. In 13% Cr maraging steel, another evolution peak due to precipitation of an intermetallic compound containing Mo appears in the temperature range between 520 and 660 degree C. Mo as well as Cr forms rich zones in the temperature range between 330 and 540 degree C on the specific heat versus temperature curve.

AB - The aging reactions of brittle and martensitic iron alloys containing 11-30%Cr and 0-10%Co, and 13% Cr maraging steel containing Co and Mo have been investigated. The specific heat versus temperature curves of high Cr ferritic and martensitic alloys are characterized by an evolution peak due to the formation of Cr-rich zones in the temperature range between 330 and 540 degree C, and an absorption peak due to reversion in the temperature range between 500 and 590 degree C. The amount of evolution increases with increasing content of not only Cr but also Co. The addition of Co promotes the formation of Cr-rich zones resulting in 475 degree C embrittlement. In 13% Cr maraging steel, another evolution peak due to precipitation of an intermetallic compound containing Mo appears in the temperature range between 520 and 660 degree C. Mo as well as Cr forms rich zones in the temperature range between 330 and 540 degree C on the specific heat versus temperature curve.

UR - http://www.scopus.com/inward/record.url?scp=0019636513&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019636513&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0019636513

VL - 45

SP - 1169

EP - 1175

JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

SN - 0021-4876

IS - 11

ER -