Tribotechnical properties modification of Al-Sn alloys by ECAP
The influence of ECAP on tribotechnical properties of Al-Sn alloys was investigated. It was established that their wear rate under dry friction on steel is reduced up to 18 ± 2% after pointed treatment while the friction coefficient does not depend on the ECAP numbers.
Microstructural and mechanical behavior of highly deformed Al–Sn alloys
Abstract Tensile strength and microstructural evolution were evaluated for the deformation processed metal–metal composites of Al–X vol.% Sn, where X = 3.96, 16.32, 20. Samples were prepared by casting, and deformed by cold rolling. The material was characterized by scanning electron microscopy and focused ion beam. In the case of larger true strains η > 5, the composite presents an unexpected increase in tensile strength compared to the rule of mixtures. During cold rolling, the Sn phase developed a lamellar morphology and geometrical aspects, as its separation and thickness were correlated with the tensile strength of the composite. A study of the peak broadening was made by using X-ray diffraction, in order to measure the microstrains inside the composite, and correlate them with the macroscopic strength.
The Soviet Home Front, 1941-1945: A Social and Economic History of the USSR in World War II
List of tables and maps Preface Acknowledgements Abbreviations and technical terms Part 1: On the Eve 1. Building Socialism 2. The Great Patriotic War 3. The State in Wartime Part 2: Soviet Society at War 4. Mobilisation 5. Subsistence and Survival 6. The Social Order Part 3: The Productive Effort 7. Fortress of the Rear 8. Labour: The 'Ultimate Bottleneck' 9. 'In Labour as in Combat' 10. Production: The Power of Victory 11. Planning: 'The Military-Economic Staff' Epilogue Tables Important dates References Maps Index