Wyniki wyszukiwania - BazTech

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Analiza składu chemicznego i fazowego cienkich warstw metalicznych

Lukaszkowicz K., Staszuk M., Nuckowski P.

LAB Laboratoria, Aparatura, Badania

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2017

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R. 22, nr 5

24--29

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Wpływ procesu naprzemiennego gięcia na mikrostrukturę i własności stopu CuSn6

Kwaśny W., Nuckowski P.

Inżynieria Materiałowa

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2015

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Vol. 36, nr 3

102--106

PL

W pracy przedstawiono wyniki badań taśm ze stopu CuSn6 poddanych obróbce plastycznej z zastosowaniem procesu naprzemiennego gięcia. Określono wpływ parametrów procesu na strukturę, teksturę oraz właściwości mechaniczne. Otrzymane wyniki porównano z wynikami uzyskanymi dla taśm walcowanych klasycznie. Wykazano, że dominującą składową w analizowanych taśmach niezależnie od zastosowanego procesu obróbki jest składowa typu Brass. Badania w wysokorozdzielczym transmisyjnym mikroskopie elektronowym potwierdziły wpływ procesu naprzemiennego gięcia na powstanie struktury nanometrycznej w postaci bliźniaków odkształcenia. Wykazano, że po obróbce plastycznej z zastosowaniem procesu naprzemiennego gięcia następuje zwiększenie maksymalnej wytrzymałości na rozciąganie w porównaniu z wytrzymałością taśm walcowanych klasycznie.

EN

The paper presents the results of the study on tapes of CuSn6 alloy after plastic deformation using the repetitive bending process. The influence of process parameters on the structure, texture and mechanical properties was investigated. Obtained results were correlated with the results obtained for alloy subjected to cold rolling. Has been shown that the major texture component of the analyzed tapes regardless of the treatment process is the Brass component. Examination in high-resolution transmission electron microscopy confirmed the impact of the repetitive bending process on formation of nanometric structure in the form of deformation twins. It has been shown that using a repetitive bending process increases the maximum tensile strength in comparison with conventionally rolled tapes.

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Influence of processing routes on structure and residual stress in aluminium-magnesium alloy after ECAP

Tański T., Snopiński P., Nuckowski P., Jung T., Kwaśny W., Linek T.

Journal of Achievements in Materials and Manufacturing Engineering

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2014

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Vol. 63, nr 1

5--12

EN

Purpose: The main goal of present study is try to find the influence of severe plastic deformation using the ECAP (equal channel angular pressing) process and different processing routes on structure formation, properties and lattice strain of EN AC 51100 alloy. Design/methodology/approach: The cold ECAP behaviour was determined using three different processing routes A, Bc and C and four repetitive pressings. The comparison between three types of processing routes has been established based on microstructure observation, grain size measurements and X-ray diffraction analysis. Findings: It was found that the structure after three types of mechanical treatments is strongly deformed, and the processing route has a significant impact on shape and grain size. It was also found that direction of shearing patterns that appears after deformation have influence on residual stress in ECAPed material. The use of equal channel angular pressing method has also an influence on hardness of investigated alloy which increase more than 90% after four repetitive pressings. Research limitations/implications: Current study presents the investigation results which was carried out on samples, not on final products. Practical implications: Current research is moving towards to develop high strength materials with increased mechanical properties and fine microstructure which are known as ultra-fine-grained materials, compared to well-known common materials. Originality/value: This paper presents the results of structure and properties investigation including X-ray analysis of severely deformed AlMg3 alloy by ECAP process.

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Effect of plastic deformation on the structure and texture of CuSn6 alloy

Kwaśny W., Nuckowski P., Jung T., Rdzawski Z., Głuchowski W.

Czasopismo Techniczne. Mechanika

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2013

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R. 110, z. 1-M

213--219

EN

This paper presents the results of study in the structure and texture CuSn6 alloy deformed in the RCS (repetitive corrugation and straightening) process. Investigated the influence of process parameters on the above property. The obtained results were correlated with the results of the alloy subjected to cold rolling.

PL

W artykule przedstawiono wyniki badań struktury oraz tekstury stopu CuSn6 odkształconego w procesie RCS (cykliczne gięcie i prostowanie). Określono wpływ parametrów procesu na wyżej wymienione własności. Uzyskane rezultaty skorelowano z wynikami badań stopu poddanego walcowaniu na zimno.

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Influence of RCS process on the structure and mechanical properties of CuSn6 alloy

Kwaśny W., Nuckowski P., Rdzawski Z., Głuchowski W.

Archives of Materials Science and Engineering

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2013

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Vol. 62, nr 2

60--66

EN

Purpose: The goal of the study is try to find the influence of plastic deformation using the RCS (repetitive corrugation and straightening) process on the structure and mechanical properties of CuSn6 alloy. The influence of process parameters on the above property were investigated. Obtained results were correlated with the results obtained for alloy subjected to cold rolling. Design/methodology/approach: This study was aimed to investigate structure and mechanical properties non annealed strip of CuSn6 alloy, cold-rolled and the tape subjected to intensive plastic deformation using the RCS method (repetitive corrugation and straightening). Findings: Research have shown increase compressive stresses and tensile strength in material after RCS process compared to classic rolled. Crystallite size measurement confirmed the presence of nano-scale structures in the studied materials after deformation by RCS process. The used method of plastic deformation is promising for development materials with improved properties. Research limitations/implications: The research was carried out on samples, not on final elements. Practical implications: Research is moving towards the development of the materials with finest microstructure, known as ultra-fine-grained materials with improved properties, compared to currently known materials. Originality/value: This paper presents the results of study of the structure and mechanical properties CuSn6 alloy deformed in the RCS (repetitive corrugation and straightening) process.