Effect of austenitizing parameters on dissolution of carbides in gamma solution and chemical composition of matrix in the hardened steel of 2% C and 12% Cr type with additives of W, Mo, V

• Autorzy: Nykiel T. , Hryniewicz T.
• Języki publikacji: EN

Abstrakty

EN

The NCWV/D3 tool steel was the subject of the study. In the course of the investigation carried out it was found that during austenitizing of the steel the carbides contents decreased from 24.84 wt% in the annealed state down to 13.33 wt% after austenitiz-ing at 1150 °C during 30 minutes. It was also stated that the carbides contents in the quenched steel after austenitizing in the temperature range from 900 to 1150 °C during 30 minutes may be determined from the relationship cb[wt%] = 28.60 - 0,46e ^0.003T Dissolution of carbides during austenitizing brings about the increase of elements Cr, W, and V contents in austenite up to 7.27%, 1.06%, and 0.086%, respectively, after austenitizing at 1150 °C during 30 minutes. It was also noticed that there is a rectilinear correlation between the contents of dissolved carbides in austenite and the contents of Cr and W in matrix of the tool steel quenched after austenitizing in the temperature range from 900 to 1150 °C and constant time of 30 minutes.

Słowa kluczowe

EN

tool steels; austenitizing; carbides contents; matrix compositin; correlations

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2003
• Tom: Vol. 3, nr 2(4)
• Strony: 49--60
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Nykiel T.

• Technical University of Koszalin, Mechanical Engineering Department, Koszalin, Poland

autor

Hryniewicz T.

• Technical University of Koszalin, Mechanical Engineering Department, Koszalin, Poland

Bibliografia

• 1. Sato T.. Honda Y., Nishizawa T.: Tetsu To Hagane. 42( 1956), 12, 1118.
• 2. Głowacki Z.: PhD Thesis, Politechnika Poznańska, Poznań (1964).
• 3. Kowalski W.: Prace Instytutu Mechaniki Precyzyjnej, rok XIV, 4(1964)1.
• 4. Berns H.: Sondendruk aus >Harterei - Technische Mitteilungen<, 29(1974)4, 236.
• 5. Haberling E., Schruft I.: Thyssen Edelst. Techn. Ber. 13 Band, 1(1987)64.
• 6. Kałuża K.: PhD Thesis, Politechnika Poznańska, Poznań, (1979)
• 7. Kałuża K.: Mechanik, vol. 60, 9(1987)423.