Annealing, quenching and heat treatment of Zirconia
The company Electrovek-Steel offers to purchase at affordable prices from manufacturers a variety of alloys based on zirconium. The supplier provides prompt delivery of the products to any point specified by the manufacturer.
Heat treatment of zirconium
Zirconium can be thermally treated using standard equipment and processes used for other materials, with some additional considerations. Since zirconium reacts with carbonaceous materials at elevated temperatures, it is important to remove all dirt, oil, grease and other residues before heat treatment.
Ideal is the level of purity, comparable to that used before welding.
Since zirconium has low strength at temperatures commonly used in heat treatment, it is also important to provide good support so that the product does not deform. For this purpose, use intermediate pads made of materials characterized by increased heat capacity. For example, often heat-treated articles or blanks of zirconium or its alloys are installed
On refractory bricks or other materials that do not react with zirconium. A sufficient number of thermocouples must be used to monitor the temperature of the metal.
To buy rolled products or semi-finished products from zirconium or its alloys that have been heat treated, the company Electrovek-Steel offers. Products are sold at affordable prices from the manufacturer. The supplier guarantees the timely delivery of the metal to any address specified by the customer.
Features of the regime of heat treatment of individual zirconium alloys
For zirconium, heat treatment in a furnace or localized heat treatment can be used. As a rule, electric, gas furnaces for heat treatment, in which zirconium is heated, prevail. However, when surface oxidation is undesirable, vacuum or argon electric furnaces are used. When using the gas heating method, a slightly oxidizing or neutral atmosphere is required. Avoid direct flame.
The zirconium alloy 702 typically does not require de-stressing,
But thermal treatment of stress relief in metal at 565 ° C and holding at this temperature for 30… 60 minutes can reduce residual stresses for processing stability, improve fatigue performance and improve corrosion performance.
Zirconium alloy 705 requires heat treatment when stress is removed within 14 days after welding to prevent cracking with a delayed hydride.
Heat treatment is also used to reduce the amount of surface oxides on zirconium to increase its wear resistance.
A typical treatment at 565 ° C for four to six hours at a temperature will provide an increase in subsurface hardness to about 480 units on the Vickers scale, (about 47 HRC units).
Company Electrovek-steel offers to buy at economically favorable prices from the manufacturer of zirconium and its alloys. The supplier guarantees the immediate delivery of the products to any point indicated by the customer.