Titanium Boron Chromium Strontium in Aluminium Alloy Sheets for sale

Titanium Boron Chromium Strontium in Aluminium Alloy Sheets for sale

Metallic elements: the influence of titanium and boron

Titanium is a commonly added element in aluminium alloys, added in the form of Al-Ti or Al-Ti-B intermediate alloys. In aluminium alloy plates, titanium and aluminium form the TiAl2 phase, which becomes a non-spontaneous core during crystallisation and plays a role in refining the forging and weld tissue. the critical content of titanium is about 0.15% when the Al-Ti system of alloys produces a package reaction, which decelerates to 0.01% if boron is present.

Metal elements: the influence of chromium and strontium

Chromium is formed in the aluminium alloy plate (CrFe)Al7 and (CrMn)Al12 and other intermetallic compounds, impede the recrystallization of the nucleation and growth process, the alloy has a certain strengthening effect, but also to improve the alloy toughness and reduce the sensitivity to stress erosion cracking. However, the venue increases the quenching sensitivity and makes the anodic oxide film yellow. The addition of chromium in aluminium alloy generally does not exceed 0.35% and decreases with the increase of the transition elements in the alloy, and strontium adds 0.015%~0.03% strontium to the aluminium alloy plate for extrusion, which makes the β-AlFeSi phase in the ingot into the Han-shaped α-AlFeSi phase and reduces the ingot averaging time by 60%~70%. Improve the mechanical function and plasticity of the material; improve the surface roughness of the product. The addition of 0.02%~0.07% strontium to high silicon (10%~13%) deformed aluminium alloys can reduce the initial crystallization to a minimum, and the mechanical function is also significantly improved, with tensile strength бb progressing from 233MPa to 236MPa, yield strength б0.2 increasing from 204MPa to 210MPa, and elongation б5 increasing from 9% to 12%. The addition of strontium in the peri-eutectic Al-Si alloy can reduce the size of the primary silicon particles and improve the plastic processing mechanism of the aluminium alloy plate, which can be smoothly hot-rolled and cold-rolled.