等温热处理获得奥—贝球铁焊缝金属研究进展

Advance of Research on Austempered Ductile Iron Weld Metal

奥－贝球铁具有优异的综合力学性能和良好的耐磨性，引起了世界广泛关注。本文重点对我国在奥－贝球铁研究中有关合金元素在铸欠焊缝中的冶金行为，奥－贝球铁的组织与力学性能，焊缝金属通过等温热处理获得奥－贝球铁组织及奥－贝球铁焊接新材料的研究进展给以介绍。

The extensive attention is paid to the austempered ductile iron with excellent mechaical properties and good wear resistance. In this paper, advances of research in China on austempered ductile iron weld metal are in troduced , especially in the metallurgical behaviour of alloying elements in cast iron weld, the microstructure and the mechanical properties of austempered ductile iron weld metal .the austemperability of weld metal and the new weld ing materials for welding austempered ductile iron.