Austenite stability in the high strength metastable stainless steels

• Autorzy: Pawlak S. J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of the present paper was to study the peculiarities of the austenite to martensite phase transformation (A-M), which is an essential step in the production technology of the high strength metastable stainless steels. Design/methodology/approach: The desired control over A-M transformation have been achieved by proper design of the steel chemistry, cold working and heat treatment. Findings: For a range of steel compositions, it was shown that severe cold working leads to fully martensitic structures. Alternatively, the deep refrigeration treatment or heating at about 750 degrees centigrade, are also effective in that respect. Subsequent ageing treatment of the deformed martensite, or martensite obtained by subzero treatment, develops interesting set of the mechanical properties. Research limitations/implications: To fully evaluate the properties of the steels further research is needed, particularly involved with the cold drawing and ageing response. Practical implications: The new metastable stainless steels could achieve properties making them competitive to some high strength steels and alloys - those with not so good combination of formability, strength and corrosion resistance. Originality/value: Revealed transformation behavior of the complex alloyed austenites makes an essential step in development of the high strength metastable stainless steels.

Słowa kluczowe

EN

heat treatment; metastable austenite; martensitic stainless steels; cold working

PL

obróbka cieplna; austenit metastabilny; stal nierdzewna martenzytyczna; obróbka plastyczna na zimno

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 22, nr 2
• Strony: 91--94
• Opis fizyczny: Bibliogr. 15 poz., fot. ,rys., tab.

Twórcy

autor

Pawlak S. J.

• Institute for Ferrous Metallurgy, ul. K. Miarki 12, 44-100 Gliwice, Poland,

Bibliografia

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