S. Yu. Kondrat’ev, B. S. Ermakov, O. V. Shvetsov, A. D. Alfimov
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Abstract
Comparative tests of mechanical characteristics of aluminum and steel pipes under static and cyclic loading are described. The mechanism of fatigue failure of drill pipes made of aluminum alloy 1953T1 and steel G-105 is analyzed. The endurance limit of the drill pipes made of 1953T1 alloy and G-105 steel is 192 and 507 MPa, and the ratio of the endurance to the yield strength is 32 and 66%, respectively. However, the strength/density ratio under cyclic loading of aluminum alloy 1953T1 is at the same level as that of steel G-105, and under static loading it significantly exceeds the values for steel G-105. This makes it possible to recommend the use of aluminum alloys for manufacturing drill pipes instead of steel ones for service under rigid operating conditions.
期刊介绍：
Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering.
Topics covered include:
New structural, high temperature, tool and precision steels;
Cold-resistant, corrosion-resistant and radiation-resistant steels;
Steels with rapid decline of induced properties;
Alloys with shape memory effect;
Bulk-amorphyzable metal alloys;
Microcrystalline alloys;
Nano materials and foam materials for medical use.
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