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Sökning: WFRF:(Guo Changjian) > (2020-2023) > Chloride Induced Se...

Chloride Induced Secondary Passive Film Failure for Laser Additive Manufacturing Nickel-Based Superalloys during Electrochemical Machining

Guo, Pengfei (författare)
Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China.;Suzhou Electromaching Machine Tool Res Inst Co Ltd, Suzhou 215011, Jiangsu, Peoples R China.
Lin, Xin (författare)
Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.
Macdonald, Digby D. (författare)
Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
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Odnevall, Inger, 1965- (författare)
KTH,Yt- och korrosionsvetenskap
Zhang, Shaoli (författare)
Xian Inst Electromech Informat Technol, Xian 710065, Peoples R China.
Zhang, Yufeng (författare)
Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.
Lin, Changjian (författare)
Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China.
Wu, Qiang (författare)
Suzhou Electromaching Machine Tool Res Inst Co Ltd, Suzhou 215011, Jiangsu, Peoples R China.
Yang, Yuan (författare)
Suzhou Electromaching Machine Tool Res Inst Co Ltd, Suzhou 215011, Jiangsu, Peoples R China.
Huang, Weidong (författare)
Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.
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Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China;Suzhou Electromaching Machine Tool Res Inst Co Ltd, Suzhou 215011, Jiangsu, Peoples R China. Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China. (creator_code:org_t)
The Electrochemical Society, 2023
2023
Engelska.
Ingår i: Journal of the Electrochemical Society. - : The Electrochemical Society. - 0013-4651 .- 1945-7111. ; 170:6
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • We investigated the influence of chloride on the secondary passive film (SPF) on laser directed energy deposition Alloy 718 during electrochemical machining. The results show that SPF formed in chloride-containing electrolyte is more defective than that formed in chloride-free solution, due to the stepped-up cation ejection by chloride. Chloride accelerates the SPF failure via enhanced cation vacancy condensation, SPF dissolution and possibly via surface vacancy pairs' coalescence, restraining the formation of CrO3 and inducing a better surface quality than does the chloride-free electrolyte. Based on the Point Defect Model, a mechanism describing the influence of chloride on SPF was developed.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

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