The effect of the addition of boron on the densification, microstructure and properties of sintered 17-4 PH stainless steel

• Autorzy: Szewczyk-Nykiel A.

Warianty tytułu

PL

Wpływ dodatku boru na zagęszczenie, mikrostrukturę i właściwości spiekanej stali nierdzewnej 17-4 PH

• Języki publikacji: EN

Abstrakty

EN

It is generally known that boron is an effective activator of the sintering process of iron as well as stainless steels. During sintering, boron contributes to the formation of a liquid phase wetting the surfaces of powder particles. As a consequence, a reduction of porosity, the rounding of pores and an increase in density is obtained. It is necessary to improve mechanical properties and corrosion resistance. The aim of this study is to investigate the effect of the addition of boron in the amounts of 0.2, 0.4 and 0.6% wt. on the density, microstructure and selected properties of sintered 17-4 PH stainless steel.

PL

Bor jest skutecznym aktywatorem procesu spiekania żelaza, ale także stali nierdzewnych. Podczas spiekania bor aktywuje proces spiekania w wyniku pojawienia się cieczy zwilżającej powierzchnie cząstek proszków. W konsekwencji przyczynia się do zmniejszenia porowatości, zaokrąglenia porów i wzrostu gęstości niezbędnego do poprawy właściwości mechanicznych i odporności na korozję. Celem przeprowadzonych badań było wyjaśnienie wpływu dodatku boru w ilości 0,2, 0,4 i 0,6 % ciężaru w postaci elementarnego proszku na kształtowanie się mikrostruktury i właściwości utwardzanych wydzieleniowo stali nierdzewnych gatunku 17-4 PH.

Słowa kluczowe

EN

17-4PH steel; boron; microstructure; sintering; dilatometry

PL

stal 17-4 PH; bor; mikrostruktura; spiekanie; dylatometria

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Czasopismo Techniczne. Mechanika
• Rocznik: 2014
• Tom: R. 111, z. 2-M
• Strony: 85--96
• Opis fizyczny: Bibliogr. 29 poz., tab., wykr., il.

Twórcy

autor

Szewczyk-Nykiel A.

• Institute of Material Engineering, Cracow University of Technology

Bibliografia

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