王智慧
,
王虎
,
贺定勇
,
崔丽
,
蒋建敏
,
周正
,
赵秋颖
稀有金属
采用等离子熔覆技术在Q235钢基体上制备了fcc结构的CoCrCuFeNiMn高熵合金熔覆层,并研究了熔覆层的组织结构以及合金元素在基体中的扩散.结果发现,熔覆层显微组织为树枝晶,枝晶间为富Cu面心立方固溶体,晶格常数为0.3597 nm,有纳米编织组织析出.枝晶内为多种元素固溶的面心立方固溶体,晶格常数为0.3664 nm.高熵组元元素在熔合线靠近热影响区一侧形成元素的过渡区,过渡区宽度约为10 μm.临近熔合线的热影响区内出现了大约70μm宽的铁素体带,该区域的珠光体因脱碳分解生成铁素体,Co在该区域扩散的距离最远.
关键词:
等离子熔覆
,
高熵合金
,
熔覆层
,
显微组织
F.Gao
,
B.Y.Song
,
C.B.Jia and Y.H.Wang Department of Material Science and Engineering
,
Dalian Railway Institute
,
Dalian 116028
,
China
金属学报(英文版)
In this study the process of cladding steel wires with aluminum is investigated experimentally. It is studied how the cladding process and the quality of products are influenced by the aluminum deformation temperature, the wheel speed, the temperature of steel wire, the wire speed and the steel wire tensile force. The relation among the process parameters above is discussed, and the effect of the aluminum deformation temperature on the coating microstructure is analyzed. This paper suggested a reasonable range of process parameters for producing aluminum cladding steel wires.
关键词:
aluminum cladding steel wire
,
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,
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