[PDF] Top 20 Stress Corrosion Behavior of Mg 2 mass% Sn Alloy by Equal Channel Angular Extrusion

... angled channel through the die using the so-called Bc pressing route, in which the samples removed from the die and then rotated by 90 in the same di- rection between each ...for 2 and 4 passes are hereaf- ... See full document

... > 2 . 4), the peak strain was about 1.0. A well-defined peak in flow stress is observed at lower temperatures and higher strain rates, at which an evidence for localization of plastic deforma- tion ... See full document

... flow stress at all strain rates; it was apparent at lower strain rates (below 1 10 2 s 1 ) the flow stress particularly increases with an increase in grain ...materials. 2) In order to ... See full document

... yield stress was 430 MPa and it was the enhancement of approx- imately 25 pct compared to peak-aged coarse-grained ...after extrusion and subsequent aging at 443 K (170 ...peak-aged alloy revealed ... See full document

... the mass scaling (artificially increasing the material density), can be employed to decrease the time re- quired to simulate an explicit ...deformation behavior, and the press- ing load (load versus stroke ... See full document

... the behavior of the samples subjected to the DMA tend to split, being the sample with 5 ECAP passes the one that showed the highest damping ...lower Sn content, we reported a similar behavior, where ... See full document

... Figure 8 shows that pits varied slightly and almost re- mained constant for SHT samples. However, results show significant increased pit density with increasing Sn content for HA samples. This revealed that ... See full document

... (kg/mm 2 ) was measured using a Buehler micromet hardness tester at a load of 300 g and the reported value is the average of 20 ...the extrusion direction to document the yield ... See full document

... WE43 alloy. The extruded alloy also showed sufficient ductility with ductile dimples at a dynamic strain ...this alloy. Mohri et al. 4) suggested that this behavior is because the critical ... See full document

... commercial Mg alloy AZ31 with the following chemical composition (in mass%): 3% Al, 1% Zn, ...and Mg (balance), supplied in form of cast ...of alloy composition, ingots were homogenized ... See full document

... Slow strain rate tensile tests (SSRT) under a saltwater cor- rosion environment were carried out in order to evaluate the SCC resistance of the abovementioned materials. Specimens 5 mm in width and 30 mm in length of the ... See full document

... from 473 to 723 K to the total strain of ¾ = 12, using a circular die in cross-section with a diameter of 20 mm. The die had a channel in L-shaped configuration with an angle of 90° between the two channels and an ... See full document

... The alloys were prepared by casting from commercial purity materials. Alloying elements contents were analyzed by using ICP method. Samples were sectioned longitudinally at mid-width using a band saw. One side was ... See full document

... Figure 2(a) shows the plane (311), where the peak broad- ening after the first ECAP pass is ...Fig. 2(b) shows the (101) plane for ...the Sn XRD peaks does not depend on the number of ECAP passes, ... See full document

... It is known that the strength of a polycrystalline material is related to the grain size. As the yield strength increases with a decreased grain size, ultrafine grain materials produced from ECAE have gained significant ... See full document

... the extrusion temperature has less effect on the carrier ...K 2 was nearly equivalent to the P:F: of unidirec- tional solidified ...lowering extrusion temperature. However, a lower extrusion ... See full document

... Fig. 2(a), the deformation is symmetric with a plane at the central horizontal line, showing higher strain at the outer portion and lower strain at the inner portion of the deformed ...After extrusion, ... See full document

... out to estimate the influence of process parameters namely die channel angle, number of passes, processing routes on microstructure and mechanical properties of AA 5083 samples. Micro-structural analysis has been ... See full document

... hardenable alloy have been investigated to shed light on the role of SPD in the enhancement of materials properties when different strengthening mechanisms contrib- ute to a resultant ... See full document

... ­ Sn alloys having eutectic system aiming at understanding the hot-cracking mechanism considering the factors of temperature, stress and element distribution in the vicinity of ...30 mass % Sn ... See full document