There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Fusion,四个来自上海的大男孩。2008年第一周,他们发行属于自己的第一张创作专辑《如果未来》。一点一点向梦想靠近的他们坦言:"一开始组乐队只是为了爱好,只是在玩,但是玩着玩着,发现已经不能不玩,可是如果要继续玩,我们需要更大的力气与努力。"这种勇气,我们坚信:音乐、如果,爱,就要,继续!

Fusion 如果,爱

With the presentation of a theory of liquid alloys, we have now assembled all the necessary tools for the ab initio construction of an alloy phase diagram.

Alloy Phase Diagrams

Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding

This paper presents a systematic study of structure and mechanical behavior of Ti/Fe explosive-bonded interfaces. The transient fluid-like behavior at the bonding zone is simulated using Smoothed Particle Hydrodynamic (SPH) numerical method. The interface is featured by a wave structure, resulted from heavy plastic deformation during the explosive welding. Melted zone resulted from the trapped jetting is surrounded by strongly deformed bulk materials. Fe 2 Ti intermetallic compounds with a mixture of FeTi+Fe phases are observed in the melted zone. A reaction layer (~700nm) consisted of nano-sized FeTi grains is formed at Ti/Fe material boundary. 

Nanoindentation tests and fracture observation confirm the brittle nature of Fe-Ti intermetallics formed in the explosive-bonded joint. Extremely temperature accumulated near the interface leads to recovery and recrystallization in deformed grains, which can accommodate relatively large strain near the interface.

Experimental and numerical investigation of microstructure and mechanical behavior of titanium/steel interfaces prepared by explosive welding

Experimental study of diffusion welding/bonding of titanium to copper

An investigation into the explosive welding/cladding of Grade A ship steel/AISI 316L austenitic stainless steel

In this study, commercially pure titanium sheets (American Society for Testing and Materials grade 2) were welded by resistance spot welding at various welding parameters The welded joints were subjected to tensile-shearing tests in order to determine the strength values In addition, the hardness and microstructural examinations were carried out in order to examine the influence of welding parameters on the welded joints The experimental results showed that increasing electrode force, welding current and welding time increased the tensile-shearing strength of the welded specimens Hardness measurement results indicated that welding nugget had the highest hardness and this was followed by the heat-affected zone and the base metal Microstructural examinations showed the growth of the weld nugget grains with increasing heat input Besides, due to plastic deformation during the welding process, twins were formed and at the same time twins increased with increasing electrode force, welding current and welding time

The effects of electrode force, welding current and welding time on the resistance spot weldability of pure titanium

Production of wire reinforced composite materials through explosive welding

In this study, explosive welding was used in the cladding of aluminum plates to ship steel plates at different explosive ratios Ship steel-aluminum bimetal composite plates were manufactured and the influence of the explosive ratio on the cladded bonding interface was examined Optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectrometry (EDS) studies were employed for the characterization of the bonding interface of the manufactured ship steel-aluminum bimetal composites Tensile-shear, notch impact toughness, bending and twisting tests, and microhardness studies were implemented to determine the mechanical features of the bimetal composite materials In addition, neutral salt spray (NSS) tests were performed in order to examine the corrosion behavior of the bimetal composites

https://www.mdpi.com/2075-4701/8/7/544/pdf

Yakup Kaya

Papers

Experimental study of diffusion welding/bonding of titanium to copper

An investigation into the explosive welding/cladding of Grade A ship steel/AISI 316L austenitic stainless steel

The effects of electrode force, welding current and welding time on the resistance spot weldability of pure titanium

Production of wire reinforced composite materials through explosive welding

Microstructural, Mechanical and Corrosion Investigations of Ship Steel-Aluminum Bimetal Composites Produced by Explosive Welding