Disposal packages containing high heat generating spent nuclear fuels (SNF) require improved heat transfer to keep the peak cladding temperature from going above the tolerance limit. Filling the accessible void spaces between the container and the SNF with a high heat conducting metal is a potential solution. In metal casting, it is well known that a gap forms at the metal-mold interface due to...

Adding alloy elements to develop excellent properties in Al alloy/steel welding–brazing joints realize lightweight vehicle structures has become a feasible task. Here, CMT was used the reliable connection of Al/steel with Cu coating. different thicknesses coating were designed study influence on microstructure composition, mechanical and corrosion resistance. Then, action rule element interfaci...

A pure Ni interlayer with a thickness of 0.1 mm was introduced between high-strength interstitial free steel and Al–Mg–Si alloy, which were friction stir lap welded, producing an excellent welded joint. The interface layer consisted γ-Ni solid solution, the mixed stirring zone contained alternate lamellae α-Fe solutions. addition strongly suppressed reaction Al Fe because atomic arrangement Ni....

Al-7Si-0.4Mg alloys are one of the most commonly applied aluminum in various casting processes. In this study, 0.06%, 0.14% and 0.20% Zr added to gravity cast alloys. The microstructural analysis as-cast with shows formation (Al,Si)3(Zr,Ti) ?-Fe phases. Compared without Zr, have finer grains; additionally, a small secondary dendrite arm spacing (SDAS) is obtained proper content. After T6 heat t...

Six new intermetallic aluminum silicides--Gd(2)PtAl(6)Si(4), Gd(2)AuAl(6)Si(4), Tb(2)PtAl(6)Si(4), Tb(2)AuAl(6)Si(4), Dy(2)PtAl(6)Si(4), and Dy(2)AuAl(6)Si(4)--have been obtained from reactions carried out in aluminum flux. The structure of these compounds was determined by single-crystal X-ray diffraction. They form in space group Rthremacr;m with cell constants of a = 4.1623(3) A and c = 51.0...

Butt joints of A5052 aluminum alloy and SS400 steel, with a new type of chamfered edge, are welded by means of metal inert gas welding and ER4043 Al-Si filler metal. The microhardness and microstructure of the joint are investigated. An intermetallic layer is found on the surface of the welding seam and SS400 steel sheet. The hardness of the intermetallic layer is examined using the Vickers har...

Binary titanium alloys with the beta-stabilizing elements of Co, Cr, Cu, Fe, Mn and Pd (up to 30%) and Ag (up to 45%) were examined through metallographic observation and X-ray diffractometry to determine whether beta phases that are advantageous for dental use could be retained. Corrosion behavior was also investigated electrochemically and discussed thermodynamically. Some cast alloys with Co...