摘要
在电铸液中加入添加剂可以使电铸镍的晶粒得到细化,通过控制添加剂的添加量可以达到控制晶粒大小的目的。利用光学显微镜和扫描电子显微镜对采用含添加剂制备的电铸镍的微观组织和晶粒形貌进行观察,并进行维氏硬度和拉伸试验性能的测试。试验结果表明,随着电铸液中添加剂含量的增加电铸方法制备的金属镍的晶粒得到明显细化,显微硬度增加,抗拉强度和伸长率随着添加剂的增加而增加,达到一定极大值后,随着添加剂的增加而呈现减小趋势。
Grain refinement could be acquired by adding additive into the electroforming solution. The objective of controlling grain size could be obtained by adjusting the additive content. Using optical microscope and scanning electron microscope to observe the microstructure and grain morphology of electroformed nickel which was prepared by adding additive into the solution, and vickers hardness and mechanical properties were also tested. The test result shows that,with the increase of additive content, the grain size of electroformed nickel can be refine obviously, and the microhardness, tensile strength and elongation all increased. The tensile strength and elongation show decreasing trend after additive content reaching a maximum.
出处
《兵器材料科学与工程》
CAS
CSCD
2009年第1期69-71,共3页
Ordnance Material Science and Engineering
关键词
电铸
力学性能
微观组织
超细晶材料
electroforming
mechanical properties
microstructure
uhra-fine grained
materials
