学科分类
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8 个结果
  • 简介:TIGweldingwasusedtodepositCo-8.8Al-9.8W-0.2Bsuperalloyon304austenitestainlesssteel.Theformfactorofweld,dilutionratio,microhardness,microstructureanddistributionofalloyingelementswereinvestigated.Themicrostructureofcladdinglayerwasmainlyhypoeutectic.Theprimaryphaseswerecobalt-richsolidsolution.Theeutecticphasewascomposedofcobalt-richsolidsolution,Co6W6CandCoCx.Whentheboroncontentincreasedfrom0.2%to0.5%,thedilutionratiodecreased,theprimaryphasebecamecoarseandthemicrohardnessdecreased.Whentheboroncontentwasfrom0.5%to2%,thedilutionratioandmicrohardnessincreasedobviously,buttheprimaryphasewasrefined.ThehardphaseofCo-8.8Al-9.8Wbecamerefinedandtheamountwasraised,andtheperformanceofcladdinglayerwasimprovedwithappropriateboronincrease.

  • 标签: Co-8.8Al-9.8W SUPERALLOY MICROSTRUCTURE BORON element CLADDING
  • 简介:随着核电、高铁、海洋工程等行业的发展,现有焊接人才已满足不了经济发展和技术创新的需求,有的已影响到新产品的开发和质量控制,尤其是应用焊接人才已成为阻碍产业升级的重要因素。笔者结合多年来参加焊接工程项目的体会,从应用焊接人才培养的紧迫性入手,分析了目前应用焊接人才培养中存在的问题,探索性的提出了解决问题的策略,并就如何实现高质量、快节奏培养应用焊接人才方法进行了探讨。

  • 标签: 应用型 焊接人才 培养 探索 思考