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内六角螺钉镦断分析

Analysis of Cracking on Socket Head Screw
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摘要 通过对内六角螺钉的成分分析和组织检验,分析了其头部镦断的原因。结果表明,原料中存在硅酸铝夹杂,使螺钉塑性降低,造成其头部镦断。 The reason of cracking on the socket head screw is analyzed by means of composition analysis and microstructure tests, The results show that the presence of impurities (3A12O3·SiO2) leads to the decrease of plasticity of socket head screw and the cracking of its head.
出处 《航空制造技术》 2008年第1期88-89,92,共3页 Aeronautical Manufacturing Technology
基金 国家自然科学基金(50334010)资助项目。
关键词 内六角螺钉 镦断 硅酸铝夹杂 Socket head screw Cracking Im-purities (3A12O3·SiO2)
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参考文献3

  • 1Azevedo C R F,Neto J B.Failure analysis of forged and induction hardened steel cold work rolls[].Engineering Failure Analysis.2004
  • 2Mantyla M,Rossoll A,Nedbal I.Fractographic observations of cleavage fracture initiation in a bainitic A508 steel[].Journal of Nuclear Materials.1999
  • 3Wang G Z,Liu Y G,Chen J H.Investigation of cleavage fracture initiation in notched specimens of a C-Mn steel with carbides and inclusions[].Materials Science and Engineering.2004

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