I made the analysis phase AZ31 magnesium alloy samples with 1.5 micrometer layer of Cr and 1.6 micrometer CrAlN layer. Samples were examined using the technique of grazing incidence diffraction angles for fixed beam radius: 3, 5, 7.5, 10, 12.5 and 15 degrees to the sample surface. In addition, for comparison, were examined in a model of magnesium aluminum and zinc - AZ31. Method of measuring grazing incidence diffraction is a technique that allows the examination of very thin films and coatings that cover some of the interest eg for corrosion protection and improve the quality of the surface.

I attended in ‘Advanced Electron Microscopy Methods Applied to Investigations of Nanomaterials’ in 6-7.10.2011 r., organized by Warsaw University of Technology and Hitachi High-Technologies. During first day I precipitated in lectures:

- ‘Advanced sample preparation technique with the NB5000 for reactive materials’ given by M. Konno;
- ‘Characterization of oxide nanoparticles in ODS ferritic steel’ given by Prof. M. Lewandowska;
- ‘Applying of Cs corrected TEM for structure identification’ given by Prof. P. Dłużewski;
- ‘New instrumentation for high resolution EM’ given by dr. M. Haider;
- ‘First experiences with the HD-2700 at ETH Zurich: an overview from material to life science applications’ given by dr. E. Muller and dr. R. A. Haider;
- ‘Atomic resolution secondary electron imaging with Hitachi HD-2700 aberration corrected STEM’ given by H. Inada;
- ‘Nanoscale imaging via SEM and STEM – background and case studies’ given by dr. T. Płociński;
- ‘Applications of STEM detectors in Scanning Electron Microscopy in materials science’ given by dr. T. Tokarski.
After lectures were provided lab tour.

On second day there were carried workshops – I attended in EBSD research with use SEM Hitachi SU-70.

In September I concentrated on investigating a series of 7475 alloy samples sintered freely in different atmospheres (argon, nitrogen) and at different temperatures (540 - 640oC). Optical microscopy observations and scanning electron microscopy investigations were performed. The lowest pore content was noticed in Ar-atmosphere samples sintered above 600oC (samples sintered under N2 atmosphere had generally more porosity). There was no aluminium nitride phase (in N2- sintered samples) detected using EDS analysis.

My research in september:
-Study of stability of homogeneous citrate solutions by UV-Vis spectroscopy method, in the following solutions:
1) 0,25 M Na3HCit; pH=5;
2) 0,65 M Na3HCit; pH=5;
3) 0,65 M Na3HCit; 0,02 M Na2MoO4; pH=5;
4) 0,25 M Na3HCit; 0,02 M Na2MoO4; pH=5;
5) 0,65 M Na3HCit; 0,1 M Na2MoO4; pH=5;
6) 0,25 M Na3HCit; 0,1 M Na2MoO4; pH=5;
7) 0,65 M Na3HCit; 0,24 M Na2MoO4; pH=5;
8) 0,25 M Na3HCit; 0,24 M Na2MoO4; pH=5;
9) 0,65 M Na3HCit; 0,08 M SnSO4; pH=5;
10) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,08 M SnSO4; pH=5;
11) 0,65 M Na3HCit; 0,16 M ZnSO4; pH=5;
12) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,16 M ZnSO4; pH=5;
13) 0,65 M Na3HCit; 0,16 M ZnSO4; 0,08 M SnSO4; pH=5;
14) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,16 M ZnSO4; 0,08 M SnSO4; pH=5;
15) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,16 M ZnSO4; 0,08 M SnSO4; ¬0,12 M Na2SO3; pH=5;
- study of the complex formation and its stability in various citrate system by cyclic voltammetry with rotating disc electrode method , in the following solutions:
1) 0,65 M Na3HCit; pH=5;
2) 0,65 M Na3HCit; 0,24 M Na2MoO4; pH=5;
3) 0,65 M Na3HCit; 0,08 M SnSO4; pH=5;
4) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,08 M SnSO4; pH=5;
5) 0,65 M Na3HCit; 0,16 M ZnSO4; pH=5;
6) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,16 M ZnSO4; pH=5;
7) 0,65 M Na3HCit; 0,08 M SnSO4; 0,16 M ZnSO4; pH=5;
8) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,08 M SnSO4; 0,16 M ZnSO4; pH=5;
9) 0,65 M Na3HCit; 0,02 M C3H6O; pH=5;
10) 0,65 M Na3HCit; ¬0,12 M Na2SO3; pH=5;
11) 0,65 M Na3HCit; 0,24 M Na2MoO4; ¬0,12 M Na2SO3; pH=5;
12) 0,65 M Na3HCit; 0,08 M SnSO4; ¬0,12 M Na2SO3; pH=5;
13) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,08 M SnSO4; ¬0,12 M Na2SO3; pH=5;
14) 0,65 M Na3HCit; 0,16 M ZnSO4; ¬0,12 M Na2SO3; pH=5;
15) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,16 M ZnSO4; ¬0,12 M Na2SO3; pH=5;
16) 0,65 M Na3HCit; 0,08 M SnSO4; 0,16 M ZnSO4; ¬0,12 M Na2SO3; pH=5;
17) 0,65 M Na3HCit; 0,24 M Na2MoO4; 0,08 M SnSO4; 0,16 M ZnSO4; ¬0,12 M Na2SO3; pH=5;

Research in September:

- preparation of samples of AA1050 alloy to observations with the high resolution scanning electron microscopy equipped with the local orientation measurements facility - grinding, polishing;

- preparation of orientation maps of aluminum alloy after ECAP and recrystallization (new and constant time = 1h);

- analysis of microstructures after deformation and during recrystallization of AA1050 aluminium processed by equal-channel angular pressing (ECAP);

Conference:

- preparation of the presentation under the title: ‘Structural changes in recrystallization of AA1050 aluminium alloy processed by ECAP’ for the 39th School in Materials Science in Krynica;

- attending in 39th School in Materials Science (Krynica 27-30.09.2011).