黄军波,何毅,殷福星.电解抛光工艺对 AP1000 管座焊接表面的改善作用[J].表面技术,2013,42(5):70-73.
HUANG Jun-bo,HE Yi,YIN Fu-xing.Improvement of Electro-polishing on the Welding Nickel-based Alloy Surface of AP1000 CRDM Nozzle[J].Surface Technology,2013,42(5):70-73
电解抛光工艺对 AP1000 管座焊接表面的改善作用
Improvement of Electro-polishing on the Welding Nickel-based Alloy Surface of AP1000 CRDM Nozzle
投稿时间:2013-05-08  修订日期:2013-05-23
DOI:
中文关键词:  焊接镍基合金  电解抛光  表面粗糙度  表面应力
英文关键词:welding nickel alloy  electro-polishing  surface roughness  surface stress
基金项目:
作者单位
黄军波 中国一重能源装备材料科学研究所, 天津 300457 
何毅 中国一重能源装备材料科学研究所, 天津 300457 
殷福星 中国一重能源装备材料科学研究所, 天津 300457 
AuthorInstitution
HUANG Jun-bo Materials Research Institute for Energy Equipments, China First Heavy Industries, Tianjin 300457 , China 
HE Yi Materials Research Institute for Energy Equipments, China First Heavy Industries, Tianjin 300457 , China 
YIN Fu-xing Materials Research Institute for Energy Equipments, China First Heavy Industries, Tianjin 300457 , China 
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中文摘要:
      研究了 AP1000 上封头 CRDM 管座用焊接镍基合金的电解抛光工艺条件,探讨了电解抛光对其表面粗糙度和应力的改善作用。 结果表明:焊接镍基合金的抛光电流密度应控制在 0 . 3 ~ 0 . 5 A / cm2之间,抛光时间宜为 2 ~ 5 min;电解抛光使表面拉应力大幅度减少,甚至产生压应力,这可抑制焊接镍基合金应力腐蚀开裂
英文摘要:
      Electro-polishing process for the welding nickel-based alloy of AP1000 upper head CRDM nozzle was studied. The improvement on the surface roughness and residual surface stress were investigated. The results show that the current density should be controlled in the range of 0 . 3 ~ 0 . 5 A / cm2and the polishing time should be within 2 ~ 5 min. The residual stress tests in surface demonstrate that tensile stress is remarkably decreased, and even pressing stress is induced by the electropolishing process, which may restrain the occurrence of stress-corrosion cracking in the welding nickel-based alloy.
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