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Wpływ wyżarzania rekrystalizującego na mikrostrukturę i właściwości blach ze stali manganowo-aluminiowych walcowanych na zimno

Perzyński G., Kuc D., Lalik S.

Hutnik, Wiadomości Hutnicze

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2015

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Vol. 82, nr 9

584--588

PL

W niniejszej pracy analizowano wpływ wyżarzania rekrystalizującego na mikrostrukturę i właściwości stali wysokomanganowej z aluminium gatunku X60MnAl30-9. Porównano mikrostrukturę i właściwości mechaniczne badanej stali do innych stali wysokomanganowych charakteryzujących się przy odkształcaniu na zimno efektem TRIP i TWIP. Badano mikrostrukturę wyjściową i po wyżarzaniu Na próbkach o dużej plastyczności przeprowadzono próbę miseczkowania metodą Swifta.

EN

The aim of research was to analysis of influence of annealing at microstructure high Mn-Al X60MnAl30-9 steel. The mechanical properties and the microstructure was compared with other Mn-Al steels, which have TWIP and TRIP effect during the cold straining. The microstructure after and before annealing was analyzed. On samples with high plasticity, the cupping test by Swift was made.

2

Effect of cold rolling and annealing on mechanical properties of HSLA steel

Schindler I., Janosec M., Mistecky E., Ruzicka M., Cizek L., Dobrzański L. A., Rusz S., Suchanek P.

Archives of Materials Science and Engineering

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2009

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Vol. 36, nr 1

41-47

EN

Purpose: was to examine effect of the parameters of cold deformation and recrystallization annealing on mechanical properties of a Nb-microalloyed HSLA steel. Design/methodology/approach: Research of strip steel QStE 420 was based on a combination of laboratory cold rolling, recrystallization annealing in vacuum furnace, mechanical (particularly tensile) tests and metallographic analyses. Findings: It was validated that by a sophisticated combination of size of previous cold reduction size and parameters of the following annealing it is possible to impact markedly a set of final properties of particular strips. Formability of the studied HSLA steel rises and vice versa strength properties fall with an increasing temperature of annealing. Research limitations/implications: The experiment should be supplemented by additional TEM analyses explaining the behaviour and role of precipitates. Practical implications: The experimentally obtained particular trends of mechanical properties may be utilized for optimization of conditions of heat treatment of the investigated HLSA steel in a cold strip rolling mill, reflecting the specific requirements for a relation between strength and plastic properties. Originality/value: Experimental potentialities of the Institute of Modelling and Control of Forming Processes in the sphere of cold rolling and heat treatment were introduced in their integrity for the first time.

3

Properties of a Nb-V-Ti microalloyed steel influenced by cold rolling and annealing

Janosec M., Schindler I., Palat J., Cizek L., Vodarek V., Mistecky E., Ruzicka M., Dobrzański L. A., Rusz S., Suchanek P.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 20, nr 1-2

251-254

EN

Purpose: was to investigate impact of cold forming and annealing on microstructural and mechanical properties of HSLA steel. Design/methodology/approach: Testing of Nb-V-Ti microalloyed strip steel was based on a combination of cold rolling, recrystallization annealing, mechanical testing, metallography and TEM. Findings: It was confirmed that by a suitable combination of size of previous cold reduction size and parameters of the following annealing it is possible to influence considerably a complex of mechanical properties of particular strips. Strength as well as plastic properties depended on the course of recrystallization and precipitates' coarsening during annealing. Research limitations/implications: The experiment should be supplemented by the more detailed analyses of microstructure. Practical implications: The results may be utilized for optimization of terms of heat treatment in a cold rolling mill, especially in accordance with specific requirements for a relation between plastic and strength properties of the investigated steel. Originality/value: Research possibilities of VSB-TUO in the sphere of cold rolling of Nb-V-Ti HSLA steel were introduced in combination with the complex approach to processing of the obtained results.

4

Static recrystalization of the FeAl based alloy after several deformation

Kuc D., Jabłońska M., Niewielski G., Bernstock E.

Inżynieria Materiałowa

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2007

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Vol. 28, nr 3-4

571-574

EN

FeAl ordered alloys have been extensively investigated as materials for higher temperature applications. In comparison with other materials on the iron base they have relative low costs, good oxidation resistance in high temperatures, high hardness and strength and low density. Limitation for development of iron aluminide alloys is their low ductility in room temperatures and this problem was very intensively researched latterly. Research of identifying nature was commenced for the purpose of evaluating the influence of cold plastic strain and recrystallization annealing on changes and the structure and microhardness of the Fe-38A1 alloy. Also, the nature of fractures of samples deformed until failure was examined. An influence of deformation and annealing on the structure of multicomponent intermetallic FeAl phase base alloy was presented. The alloy was subjected to cold deformation by compression. The influence of annealing temperature in the range of 60G°C to 900°C after cold deformation onto the kinetics of static recrystallization process taking place in the structure of alloy was inspected.

PL

Uporządkowane stopy FeAl należą do materiałów mogących mieć w przyszłości zastosowanie do pracy w podwyższonej i wysokiej temperaturach. W porównaniu z innymi stopami na bazie żelaza charakteryzują się niższymi kosztami materiałowymi, lepszą odpornością na utlenianie w wysokiej temperaturze, dużą twardością oraz wytrzymałością a także mniejsza gęstością. Rozwój tych materiałów jest ograniczony poprzez ich niewystarczającą plastyczność w temperaturze pokojowej, co jest przedmiotem wielu badań. Prowadzone w pracy badania tych stopów rozpoczęto głównie w celu uzyskania informacji na temat wpływu odkształcenia plastycznego na zimno i wyżarzania rekrystalizującego na ich strukturę i twardość. Analizowano ponadto strukturę przełomów badanych stopów po odkształceniu na zimno. Zaprezentowano wpływ procesu wyżarzania prowadzonego w zakresie temperatury od 600°C do 900°C na kinetykę i zmiany struktury w trakcie rekrystalizacji statycznej po zgniocie na zimno.

5

Influence of cold rolling and annealing on mechanical properties of steel QStE 420

Schindler I., Janošec M., Místecký E., Růžička M., Čížek L., Dobrzański L. A., Rusz S., Suchánek P.

Journal of Achievements in Materials and Manufacturing Engineering

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2006

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Vol. 18, nr 1-2

231--234

EN

Purpose: was to investigate impact of cold reduction size and annealing on mechanical properties of HSLA steel. Design/methodology/approach: Testing of strip steel QStE 420 was based on a combination of cold rolling, recrystallization annealing, mechanical testing and metallographic analyses. Findings: It was confirmed that by a suitable combination of size of previous cold deformation and parameters of the following annealing it is possible to influence considerably a complex of mechanical properties of particular strips. Strength properties were more or less decreasing with the rising annealing temperature, whereas plastic properties were increasing. Research limitations/implications: The experiment should be supplemented by additional modes of soft- and recrystallization annealing. Practical implications: The results may be utilized for optimization of terms of heat treatment in a cold rolling mill, exactly in accordance with specific requirements for a relation between plastic and strength properties of the investigated material. Originality/value: Research possibilities of VSB-TUO in the sphere of cold rolling were introduced for the first time.

6

Zastosowanie testu teksturowego do obserwacji strukturalnych efektów wyżarzania rekrystalizującego.

Stalony-Dobrzański F.

Rudy i Metale Nieżelazne

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2003

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R. 48, nr 10-11

505-509

PL

Omawiany jest przypadek obserwacji zróżnicowania stanu strukturalnego po walcowaniu na zimno i wyżarzaniu stopu 3003, które wynika ze zmiany temperatury końca walcowania na gorąco. Zróżnicowanie to jest źródłem niestabilności skutków całego procesu technologicznego i w konsekwencji można wskazywać, iż ma bezpośredni wpływ na trudności z uzyskaniem oczekiwanych własności użytkowych wyrobu.

EN

The author discuses the case when differentiation of the structural state is observed after cold rolling and annealing of 3003 alloy, which occurs as a result of the temperature change at the end of hot rolling. This differentiation is responsible for the instabilility of the results of the entire technological process and, as a consequence, it can be interpreted as indicating that it is directly connected with the difficulties in obtaining the expected functional properties of the product.