首页> 外文期刊>Journal of Materials Research >Microstructure and mechanical properties of electron beam weld joints of a Zr_(41)Ti_(14)Cu_(12)Ni_(10)Be_(23) bulk metallic glass with Zr
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Microstructure and mechanical properties of electron beam weld joints of a Zr_(41)Ti_(14)Cu_(12)Ni_(10)Be_(23) bulk metallic glass with Zr

机译:含Zr的Zr_(41)Ti_(14)Cu_(12)Ni_(10)Be_(23)大块金属玻璃的电子束焊接接头的组织和力学性能

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摘要

The electron beam welding technique was used to join Zr_(41)Ti_(14)Cu_(12)Ni_(10)Be_(23) bulk metallic glass (BMG) to crystalline pure Zr. Compositional, microstructural, and mechanical property variations across the welded interface were evaluated. It is shown that a crystalline layer develops close to the welding interface. Transmission electron microscopy of this layer indicates the crystalline phase to be tetragonal with lattice parameters close to that reported for Zr_2Ni. However, the composition of this phase is different as it contains other alloying additions. The interface layer close to the bulk metallic glass side contains nanocrystalline Zr_2Cu phase embedded in the glassy matrix. Nanoindentation experiments indicate that the hardness of the crystalline layer, although less than the bulk metallic glass, is more than the Zr itself. Commensurately, tensile tests indicate that the failure of the welded samples occurs at the Zr side rather than at the weld joint.
机译:电子束焊接技术用于将Zr_(41)Ti_(14)Cu_(12)Ni_(10)Be_(23)大块金属玻璃(BMG)连接到结晶纯Zr。评估了整个焊接界面的成分,微观结构和机械性能变化。结果表明,结晶层在靠近焊接界面处形成。该层的透射电子显微镜表明晶相为四方晶,晶格参数接近Zr_2Ni。但是,该相的组成不同,因为它包含其他合金添加物。靠近块状金属玻璃侧的界面层包含嵌入玻璃态基质中的纳米晶Zr_2Cu相。纳米压痕实验表明,尽管结晶层的硬度小于块状金属玻璃的硬度,但仍高于Zr本身。相应地,拉伸试验表明,焊接样品的失效发生在Zr侧,而不是在焊接接头处。

著录项

  • 来源
    《Journal of Materials Research》 |2007年第2期|p.437-444|共8页
  • 作者单位

    Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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