In situ observation on fatigue crack growth in SCS-6/Ti-15-3 composite at elevated temperatures

Ultimate tensile behavior of short single‐wall carbon nanotube/epoxy composites and the reinforced mechanism

“…The specimens of pure epoxy and the composites for tensile tests have a dog‐bone shape with a width of 10 ± 0.2 mm, a thickness of 3.5 ~ 4.5 mm and a gauge length of 60 ± 0.5 mm, as shown in Figure S3A. [ 58 ] Figure S3B is a photograph of the composite sample with 0.05 wt% SWCNTs before and after tensile test. Figure 4A shows typical stress–strain behavior of pure epoxy and the composites by the tensile tests.…”

In situ observation of interfacial fatigue crack growth in diffusion bonded joints of austenitic stainless steel

“…Furthermore, micro-voids left on bonded interface will influence the behavior of fatigue crack propagation, but the investigation of how those micro-voids influence the fatigue crack growth of similar diffusion bonded joints has not been carried out yet. As for in situ observation of interfacial crack growth, Lin et al [13], Tanaka et al [14] and Zhu et al [15] have conducted experimental researches on dissimilar joints of SiC-fiber/Sic and SCS-6/Ti-15-3 composite. However, to date, no in situ observation of the interfacial fatigue crack growth in diffusion bonded joints of austenitic stainless steel was reported.…”

Fatigue Cracking Behaviors and Influence Factors of Cast Magnesium Alloys

“…testing system. Since that time, numerous studies have demonstrated that in-situ fatigue in the SEM device is an effective tool for the investigation of microstructural effects on the development of slip features [12,13], on crack initiation [2,5,[14][15][16][17][18][19], for the analysis of the mechanisms of crack growth [14][15][16][17]20,21], for the quantitative determination of small crack growth rates [14][15][16][17][18]22], crack tip opening displacements [16,[23][24][25], for the examination of interactions between fatigue crack growth and microstructure [15,16,[26][27][28], for the effects of vacuum, high temperature, water vapor environments, notch and pores alignment etc. [6,15,16,[29][30][31].…”