Molybdenum News Center

The Advantage of Using Aluminothermic Smelting To Produce TZM Alloy

TZM alloy is commercially prepared by either powder metallurgy or vacuum arc melting techniques. However, these methods are expensive in view of using pure components and high vacuum involving multiple steps. Melting operation is also a difficult job in view of large variation in the melting temperatures of various components. As there is no provision for stirring during melting, the alloying components do not mix well invariably leading to their segregation. As a result, final alloy is obtained as inhomogeneous mass. Repeated crushing and melting for a number of times can minimize the segregation problem, however, such attempts are time consuming and can escalate the cost.
On the other hand, using aluminothermic smelting to produce TZM alloy is more cheaply and more efficiently. Here cheaper oxide intermediates such as MoO₂, TiO₂ and ZrO₂ in place of pure elemental components have been used as the starting materials for the preparation of TZM alloy. The alloy was synthesized from these oxides by their co-reduction with reductant aluminium in presence of requisite amount of carbon to make the TZM alloy. Heat of the reactions was judiciously utilized to achieve smelting and consolidation of the alloy product.

 

More molybdenum product: http://www.molybdenum.com.cn
Tel: 0592-5129696 Tax：0592-5129797
E-mail:  This email address is being protected from spambots. You need JavaScript enabled to view it.
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

• < Prev
• Next >