الدراسة التجريبية للحصول على المنحنى (S-N)‎ لخليطة الألمنيوم ALMg1SiPb عند درجات الحرارة العادية و المنخفضة

الملخص EN

This paper describes the experimental work carried out in order to obtain the stress-number of cycles to failure curve (S-N curve) for aluminium alloy AlMg1SiPb at temperatures of (20°C) and (-50°C).

The details of the specimens considered, testing procedures and processing of results were taken according to the requirements of the ASTM standards.

In order to guarantee the accuracy of the specimen's dimensions and smoothness, special cutting, grinding, polishing and measuring machines and instruments were used in the preparation of the specimens.

In addition, to insure correct application of loading cycles, computerized testing rig was used and an alignment test was considered according to the requirements of ASTM standards.

The obtained results showed that the possibility of carrying out tests to get (S-N) curves using locally available resources is visible.

Additionally, S-N curves for aluminium alloy AlMg1SiPb which are, to the best of the authors knowledge, not available in the public domain are now available for temperatures of (20°C) and (- 50°C).