Tensile Deformation Mechanism of an Formed Ti-Based Bulk Metallic Glass Composites.

Ti-based bulk metallic glass composites (BMGMCs) containing an formed metastable β phase normally exhibit enhanced plasticity attributed to induced phase transformation or twinning. However, the underlying deformation micromechanism remains controversial. This study investigates a novel deformation mechanism of Ti-based BMGMCs with a composition of TiZrCuNbNiBe (at%).

Dynamic Compressive Mechanical Behavior and Microstructure Evolution of Rolled Fe-28Mn-10Al-1.2C Low-Density Steel.

In this study, the quasi-static and dynamic compressive mechanical behavior of a rolled Fe-28Mn-10Al-1.2C steel (low-density) was investigated. X-ray diffraction, optical microscopy, electron backscattered diffraction and transmission electron microscopy were conducted to characterize the microstructure evolution.

Effects of TiB Particles on the Microstructure Evolution and Mechanical Properties of BC/TiB Ceramic Composite.

BC/TiB ceramic composites reinforced with three size scales (average particle size: 7 μm, 500 nm, and 50 nm) of TiB were prepared by using a pressureless sintering furnace at 2100 °C under Ar atmosphere for 60 min. The results demonstrated that during the sintering process, TiB located on the boundaries between different BC grains could inhibit the grain growth which improved the mass transport mechanism and sintering driving force. A semi-coherent interface between BC and SiC was found, which is supposed to help to reduce the interface energy and obtain good mechanical properties of the BC/TiB ceramic composite.

The Effect of Interlayer Materials on Ceramic Damage in SiC/Al Composite Structure.

The effect of interlayer materials on the damage of ceramics in the SiC/Al compositestructure was analyzed through experiments and simulation. Using 0.25 mm thermoplasticpolyurethane (TPU) as a reference, a 0.

Influence of Backing Plate Support Conditions on Armor Ceramic Protection Efficiency.

The bilayer composite ceramic armor is widely used in the world, while the protection efficiency of the armor ceramic in it still confuses researchers. This study applied a numerical simulation method to produce a general equation that describes the relationship between the protection efficiency of the armor ceramic and the supporting conditions of the backing plate, thereby enhancing the current understanding of the composite ceramic armor. The results indicated that the protection efficiency of the armor ceramic can be divided into three parts: (1) the basic protection efficiency, (2) the increment efficiency caused by inertial support, and (3) the increment efficiency caused by mechanical support.

Ballistic Behavior of Oblique Ceramic Composite Structure against Long-Rod Tungsten Projectiles.

Oblique ceramic armor structure composed of an oblique part and a backing part was designed to resist the ballistic impact of long rod penetrators. The front part consisted of an oblique silicon carbide ceramic and a triangular titanium alloy prism. The backing part contained layered silicon carbide and armor steel designed to absorb the residual energy of penetrators.