钼及钼合金烧结技术研究及发展

从粉末冶金烧结理论、烧结设备、烧结工艺参数及新型烧结技术等方面概述了钼及钼合金烧结技术的研究现状及进展。结论指出, 钼及钼合金烧结理论仍集中在传统粉末冶金理论体系; 烧结技术发展方向是获得全致密化、细晶、均质化的烧结坯体; 发展趋势是烧结设备及工装与粉末冶金新技术结合更为紧密, 出现更多交叉研究; 研究热点和难点是大型钼及钼合金坯件烧结致密化、微观组织均质化、细晶化及复杂烧结态异型坯件烧结过程中形状精确控制等。

Research and development on the sintering techniques of molybdenum and molybdenum alloys

The progress and prospect on the sintering techniques of molybdenum and molybdenum alloys were summarized in this paper, including sintering theory, sintering equipment, and sintering processing parameters, and new sintering techniques. In the results, the sintering theory of molybdenum and molybdenum alloys still focuses on the traditional theory of powder metallurgy. The development of sintering technology is to obtain the fully densified, fine crystal, and homogenized sintered billets. The tendency of sintering technology is the closely combination of sintering equipment and tooling with new powder metallurgy technology, resulting in more cross-research. Fully densification, microstructure homogenization, fine crystallization, and precise shapes controlling of sintered complex shapes molybdenum products during the sintering processing of large molybdenum and molybdenum alloys billets will be the hot and difficult points on the studies of molybdenum and molybdenum alloys sintering techniques.