C.S. Liu
,
S.Y. Chen
,
Z.T. Wang
金属学报(英文版)
High boron bearing steel, in which boron homogeneously distributed, was successfullyproduced in the vacuum induction furnace. The microstructural observations of castand hot rolled steels showed that the addition of titanium can eliminate the quantity offerrous borides precipitated at the grain boundaries and break the net microstructure,as a result, its hot workability is improved. The titanium boride TiB2 homogeneouslydistributes in the matrix of α-Fe. The parameters of hot rolling process, includingpreheated temperature, initial rolling temperature, finished rolling temperature andthe total deformation, have been optimized.
关键词:
shielding material
,
null
,
null
许宏飞
,
薛跃军
,
郑自芹
,
张永信
,
张大江
,
张琼
,
董园园
兵器材料科学与工程
针对10~100 kHz的低频磁场设计了几种屏蔽材料的复合结构,研究不同屏蔽材料对低频磁场的屏蔽效能.结果表明:低频磁场的屏蔽效能主要与材料的磁导率和电导率有关,屏蔽效能随磁场频率的增加而增加;对于不同频率的磁场,通过调整屏蔽材料的复合结构,能够以较低的厚度获得较高屏蔽效能.
关键词:
低频磁场
,
屏蔽材料
,
复合结构
,
屏蔽性能
