FeCrAl alloys were prepared with TiC additions to act as hydrogen traps and improve resistance to hydrogen cracking. Weldability results showed that alloys with up to 20 wt% Al and 11 wt% Cr could be prepared crack-free with relatively small TiC additions of ~ 4 wt%. Thermogravimetric analysis of Fe-10Al-5Cr corrosion coupons with and without TiC has shown that the corrosion resistance is not s...

In this study, the grindability of cast magnetic alloys (Fe-Pt-Nb magnetic alloy and magnetic stainless steel) was evaluated and compared with that of conventional dental casting alloys (Ag-Pd-Au alloy, Type 4 gold alloy, and cobalt-chromium alloy). Grindability was evaluated in terms of grinding rate (i.e., volume of metal removed per minute) and grinding ratio (i.e., volume ratio of metal rem...

The objective of this study was to compare corrosion behavior in several titanium alloys with immersion in acidulated saline solutions containing hydrogen peroxide. Seven types of titanium alloy were immersed in saline solutions with varying levels of pH and hydrogen peroxide content, and resulting differences in color and release of metallic elements determined in each alloy. Some alloys were ...

The influence of alloying additions on strengthening of high pressure torsion (HPT) processed alloys was investigated using commercially pure Al (Al-1050 alloy) and five Al-(1-3)Mg-(0-4)Cu alloys (in wt%). Microhardness was measured on cross sections. For Al-1050 the microhardness reaches a peak at an effective strain of about 3 and subsequently decreases. The microhardness of Al-Mg-Cu alloys i...

Super-simple designs are useful in constructing codes and designs such as superimposed codes and perfect hash families. Recently, Gronau et al determined the existence of super-simple (v, 5, 2)-BIBDs with possible exceptions of v ∈ {75, 95, 115, 135, 195, 215, 231, 285, 365, 385, 515}. In this article, we investigate the existence of a super-simple (v, 5, 4)-BIBD and show that such a design exi...

Laser additively manufactured duplex stainless steels contain mostly ferrite in the as-built parts due to rapid solidification of printed layers. To achieve microstructures (ferrite and austenite roughly equal proportions) and, thus, a good combination mechanical properties corrosion resistance, an austenitic steel powder (X2CrNiMo17-12-2) super (X2CrNiMoN25-7-4) were mixed different proportion...

Metal matrix syntactic foams (MMSFs) are a class of fascinating particulate composites consisting metal and hollow spheres, which promising in the light-weight structural energy absorbing applications. However, absorption capacity most MMSFs is suffocated inevitably by relatively low strength traditional alloys, such as widely used aluminum magnesium alloys. Here, we developed novel MMSF with C...

It has been known for quite some time that the N = 4 super Yang-Mills equations defined on four-dimensional Euclidean space are equivalent to certain constraint equations on the Euclidean superspace IR (4|16). In this paper we consider the constraint equations on a deformed superspace IR (4|16) ¯ h ` a la Seiberg and derive the deformed super Yang-Mills equations. In showing this, we propose a ...

The three dimensional atom probe (3DAP) is the only tomography technique with an atomic resolution. Due this unique feature, it has been widely used in semi-quantitative compositional analyses of solute clusters and nanosized precipitates in alloys. Various microalloying effects in the precipitation processes of aluminum alloys have been investigated using the 3DAP. The most well-known example ...

A systematic investigation of the magnetization and mechanical properties of amorphous NixFeso-,BlSSiz is reported. The magnetization showed strong depression for x 2 50. The alloys with x 2 65 are paramagnetic at room temperature but the Young's modulus (as well as microhardness) decreased almost linearly with x at 77 and 300 K. It was concluded that bonding was primarily due to d-electrons re...