CALORIMETRIC ANALYSIS OF AGING REACTION IN Ni MARAGING STEELS CONTAINING Ti.

Setsuo Takaki, Yasutoshi Sujita, Youichi Tokunaga

Research output: Contribution to journalArticle

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Abstract

Aging reactions in 18-20%Ni maraging steels containing Co, Mo and Ti have been investigated. With Ti above about 1%, the formation of Mo rich zones is suppressed and the precipitation of phases containing Ti occurs. In an Fe-18%Ni-10%Co-5%Mo-2. 1%Ti alloy, the specific heat versus temperature curve is characterized by the appearance of three evolution peaks at 470, 540 and 600 degree C, corresponding to precipitation of a low temperature phase containing Ti,Ni//3Ti(DO//2//4) and Ni//3Mo. On isothermal aging at about 500 degree C, this alloy hardens by precipitation of the low temperature Ti-phase in the early stage and precipitation of Ni//3Mo in the later stage.

Original languageEnglish
Pages (from-to)1101-1106
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume45
Issue number10
Publication statusPublished - Oct 1981
Externally publishedYes

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Aging of materials
Maraging steel
maraging steels
Temperature
Specific heat
specific heat
curves
temperature
titanium nickelide

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

CALORIMETRIC ANALYSIS OF AGING REACTION IN Ni MARAGING STEELS CONTAINING Ti. / Takaki, Setsuo; Sujita, Yasutoshi; Tokunaga, Youichi.

In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 45, No. 10, 10.1981, p. 1101-1106.

Research output: Contribution to journalArticle

Takaki, Setsuo ; Sujita, Yasutoshi ; Tokunaga, Youichi. / CALORIMETRIC ANALYSIS OF AGING REACTION IN Ni MARAGING STEELS CONTAINING Ti. In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 1981 ; Vol. 45, No. 10. pp. 1101-1106.
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