Crystallographic Texture and Applications of Pure Cu Formed by Shot Peening
Crystallographic Texture and Applications of Pure Cu Formed by Shot Peening
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DOI：
10.1002/pssb.202100550
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发表时间：
2022-03-30
影响因子：
1.6
通讯作者：
Watanabe，Yoshimi
中科院分区：
文献类型：
--
作者：
Sato，Hisashi;Ito，Yuya;Watanabe，Yoshimi
研究了喷丸(SP)纯铜的晶体织构及其织构形成过程。对具有β纤维织构的纯铜板材进行SP处理时，在冲击表面形成了形变诱导层，细化了晶粒。旋转晶格，形成了⟨110⟩方向平行于喷丸表面平面法向的{110}纤维织构。随着SP持续时间的增加，{110}纤维织构的强度增加。面心立方金属的{110}纤维织构是通过单轴压缩形成的。结果表明，SP变形以单轴压缩为主，形成了{110}纤维织构。此外，使用具有{110}纤维织构的喷丸(SPED)样品，进行了石墨烯的生长实验。以SPED样品为衬底，采用化学气相沉积法生长石墨烯。与未经处理的衬底表面相比，SPED样品上生长出了高质量的石墨烯。因此，SP对晶体织构的控制将是制备高质量石墨烯的铜和其他催化衬底表面的重要工具之一。
The crystallographic texture of pure Cu formed by shot peening (SP) and the texture formation process are investigated. When a pure Cu sheet with a β‐fiber texture is subjected to SP, grain refinement occurs and a deformation‐induced layer is formed around the peened surface. The crystal lattice is rotated and a {110} fiber texture, in which the ⟨110⟩ direction is parallel to the plane normal direction of the peened surface, is formed. The intensity of the {110} fiber texture increases with increasing SP duration. The {110} fiber texture is formed by uniaxial compression for face‐centered cubic metals. It is concluded that uniaxial compression is dominant in deformation by SP and a {110} fiber texture is therefore formed. Moreover, using shot‐peened (SPed) specimen with {110} fiber texture, a growth test of graphene is carried out. The SPed specimen is used as a substrate to grow the graphene by the chemical vapor deposition process. Growth of high‐quality graphene on the SPed specimen is obtained compared to unprocessed substrate surface. Therefore, control of the crystallographic texture by SP would be one of important tools for preparing Cu and other catalytic substrate surfaces for high‐quality graphene growth.