多金属结核金属化还原所得合金磁性研究

对多金属结核不同工艺条件下金属化还原,得到的“有磁性”和“无磁性”两种合金颗粒。对铁基合金磁性进行理论分析,对两组合金颗粒成分和微观组织进行对比分析,研究影响合金磁性的主要元素及组织结构。结果表明锰是影响合金磁性的主要元素,锰含量很低时磁性强,锰含量高时磁性就很弱,锰在合金中促进了奥氏体组织的形成,从而导致合金无磁性。

Study on Magnetism of Alloy Particles in Metallic Reduction of Polymetallic Nodules

Using metallic reduction to treat polymetallic nodules in different process conditions, two kinds of alloy particles("magnetic" and "non-magnetic") were achieved. Theory analysis of magnetic iron base alloy has been done, composition and microstructure were contrasted to study the main elements and structures affecting the magnetism of alloy. The results show that manganese is the main element affecting the magnetism of alloy, The magnetism of alloy is strength when manganese content is very low, the magnetism of alloy is very weak when manganese content is high. Manganese is effective to promote the formation of austenitic organization, resulting in non-magnetic alloy.