Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Fracture (geology)"'
Publikováno v:
Scripta Materialia. 191:76-80
We report crystallographic orientation dependent fracture behavior in tantalum single crystals with the tensile axes oriented close to [100], [110] and [111] directions. Three tantalum single crystals were deformed in quasi-static, uniaxial tension a
Publikováno v:
Scripta Materialia. 187:169-174
In this study, ultrafine-grained Al71Ni14.5Co14.5 quasicrystal alloy was prepared by short-term mechanical alloying and spark plasma sintering process. The properties of the material exhibited a positive temperature dependence during the compression
Autor:
Yongan Zhang, Youzhi Tong, Baiqing Xiong, Yan Hongwei, Hongwei Liu, Kai Wen, Ya-Nan Li, Zhihui Li, Lizhen Yan, Xiwu Li, Weicai Ren
Publikováno v:
Scripta Materialia. 186:259-262
Secondary cracks were frequently reported in fatigue failure of aviation aluminum alloy. In present study, scanning electron microscope observation of fracture morphology was carried out on an Al-Zn-Mg-Cu alloy extrusion plate with high zinc content.
Autor:
Jan Steinbrücker, Mark Alan Swider, Hans Jürgen Maier, Khemais Barienti, Gunther Eggeler, Gregory Gerstein, Sebastian Herbst, Christian Hinte
Publikováno v:
Scripta Materialia. 186:132-135
The microstructure and the fracture behavior of TiZrHfCoNiCu high entropy shape memory alloys with two different compositions were investigated. An unusual microstructure featuring pattern-forming nanoprecipitates was observed in dendritic and the in
Publikováno v:
Scripta Materialia. 185:47-50
Organic-inorganic halide perovskite (OIHP) thin films at the heart of the new perovskite solar cells (PSCs) are very brittle, limiting the mechanical reliability of PSCs. Here we show that fine-grained MAPbI3 (prototypical OIHP) films with grain size
Publikováno v:
Scripta Materialia. 183:133-138
In this study, we additively manufactured a CrMnFeCoNi/AlCoCrFeNiTi0.5 laminated high-entropy alloy (HEA), with alternating layers of both constituent materials, that exhibits enhanced strength-plasticity synergy during compression (yield strength up
Autor:
Bo Niu, Yu Zhou, Zhihua Yang, Wenjiu Duan, Baofu Qiu, Qian Li, Dechang Jia, Peigang He, Delong Cai, Xiaoming Duan
Publikováno v:
Scripta Materialia. 178:402-407
The anisotropic properties of hexagonal boron nitride (h-BN) grain are always ignored when evaluating the thermal shock performance of h-BN ceramics. In this work, h-BN ceramics with different orientation degree were selected, and effects of orientat
Publikováno v:
Scripta Materialia. 173:80-85
Fatigue crack growth in single-packet structures with different habit-plane orientations was examined using miniature compact-tension specimens of ultra-low carbon steel to elucidate the elementary process of microstructural crack growth in lath mart
Publikováno v:
Scripta Materialia. 173:125-128
Boron carbide is an excellent protection material but it is also very brittle, and granular flow, triggered by progressive fracture during impact, greatly influences its ballistic performance. Transmission electron microscopy observations of samples
Publikováno v:
Scripta Materialia. 162:190-194
Micro-pillar splitting at temperatures up to 500 °C was used to evaluate the toughness for a series of thin physical vapour deposited ceramic-nitride coatings. When compared to ion beam notched geometries, this testing approach reduces the likelihoo