Effect of electropulsing treatment on corrosion behavior of nickel base corrosion-resistant alloy
脉冲电流处理对一种镍基耐蚀合金腐蚀行为的影响
查看参考文献19篇
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文摘
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Electropulsing treatment (EPT) was performed on a nickel base corrosion resistant alloy during aging. The effect of EPT on the microstructure and corrosion resistance of the alloy and the mechanisms were investigated. The results show that the intergranular corrosion resistance can be improved substantially without the degradation of mechanical properties of the alloy by EPT. The EPT has an effect of enhancing the interface diffusion rate of the alloying element, which is higher than the body diffusion rate. And thus discontinuous precipitation of M_(23)C_6 type carbides appears at the grain boundary in the alloy by EPT, which decreases the depletion extent of the alloying elements at the grain boundary substantially. As a result, the intergranular corrosion resistance of the alloy can be improved by the EPT without any degradation of mechanical properties. |
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其他语种文摘
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将脉冲电流处理应用于一种镍基耐蚀合金的时效过程，研究脉冲电流对合金显微组织及耐蚀性的影响规律及机理。结果表明，脉冲电流处理后，合金在力学性能基本保持不变的前提下，其耐晶间腐蚀性能得到显著提高。脉冲电流能够显著提高合金元素的界面扩散速度，其界面扩散速度远快于体扩散速度，晶界M_23C_6型碳化物呈典型的不连续析出转变特征。与常规时效处理相比，脉冲电流处理后晶界碳化物的不连续析出转变，使晶界位置的合金元素的贫化程度大幅度降低，在保证合金力学性能的前提下，显著改善合金的耐晶间腐蚀能力。 |
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来源
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Transactions of Nonferrous Metals Society of China
,2011,21(9):1970-1975 【核心库】
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DOI
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10.1016/s1003-6326(11)60958-8
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关键词
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discontinuous precipitation
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electropulsing
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intergranular corrosion
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nickel base alloy
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地址
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1.
Northeastern University, Key Lab for Anisotropy and Texture of Materials, Shenyang, 110819
2.
Department of High-temperature Materials, Central Iron and Steel Research Institute, Beijing, 100081
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1003-6326 |
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学科
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金属学与金属工艺 |
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基金
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国家973计划
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国家自然科学基金
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PhD Programs Foundation of Ministry of Education of China
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文献收藏号
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CSCD:4321639
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参考文献 共
19
共1页
|
|
1.
Sharghi M R. The influence of thermal exposure on the γ′ precipitates characteristics and tensile behavior of superalloy IN-738LC.
Journal of Materials Processing Technology,2004,147(3):343-350
|
CSCD被引
1
次
|
|
|
|
|
2.
Xie Xishan. Research and development of γ″ and γ' strengthened Ni-Fe base superalloy GH4169.
Jinshu Xuebao/Acta Metallurgica Sinica,2010,46(11):1289-1302
|
CSCD被引
3
次
|
|
|
|
|
3.
Bai C Y. Effects of electrical discharge surface modification of superalloy Haynes 230 with aluminum and molybdenum on oxidation behavior.
Corrosion Science,2007,49(10):3889-3904
|
CSCD被引
2
次
|
|
|
|
|
4.
Han Enhou. Corrosion mechanisms of stainless steel and nickel base alloys in high temperature high pressure water.
Jinshu Xuebao/Acta Metallurgica Sinica,2010,46(11):1379-1390
|
CSCD被引
2
次
|
|
|
|
|
5.
Gordon A P. Corrosion kinetics of a directionally solidified Ni-base superalloy.
Acta Materialia,2007,55(10):3375-3385
|
CSCD被引
6
次
|
|
|
|
|
6.
Chen Changfeng. Study on local corrosion of nickel-base alloy tube in the environment of high temperature and high pressure H2S/CO2.
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2010,39(3):427-432
|
CSCD被引
6
次
|
|
|
|
|
7.
Lodder A. Electromigration theory unified.
Europhysics Letters,2005,72(5):774-780
|
CSCD被引
2
次
|
|
|
|
|
8.
Li J M. Modification of solidification structure by pulse electric discharging.
Scripta Metallurgica et Materiala,1994,31(12):1691-1694
|
CSCD被引
46
次
|
|
|
|
|
9.
Conrad H. Thermally activated plastic flow of metals and ceramics with an electric field or current.
Materials Science and Engineering A,2002,322(1/2):100-107
|
CSCD被引
34
次
|
|
|
|
|
10.
Lopez N. Influence of σ-phase on mechanical properties and corrosion resistance of duplex stainless steels.
Corrosion Science,1999,41(8):1615-1631
|
CSCD被引
18
次
|
|
|
|
|
11.
Wang Ling. The investigation of macrosegregation behavior and microsegregation of alloy elements in GH3044.
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2006,35(9):1408-1411
|
CSCD被引
1
次
|
|
|
|
|
12.
Liu Y. Effects of electropulsing treatment on the precipitation behaviour of grain boundary carbides in GH3044 alloy.
Materials Science Forum,2010,654/656:464-467
|
CSCD被引
1
次
|
|
|
|
|
13.
Marta T D. Practical aspects of discontinuous precipitation and dissolution.
Materials Chemistry and Physics,2003,80(2):476-481
|
CSCD被引
1
次
|
|
|
|
|
14.
Zhang W. Evolution of microstructures in materials induced by electropulsing.
Micron,2003,34(3/5):189-198
|
CSCD被引
18
次
|
|
|
|
|
15.
Zhou Y Z. Reversing effect of electropulsing on damage of 1045 steel.
Journal of Materials Research,2000,15(5):1056-1061
|
CSCD被引
17
次
|
|
|
|
|
16.
Tang D W. Thermal stress relaxation behavior in thin films under transient laser-pulse heating.
Journal of Applied Physics,1993,73(8):3749-3752
|
CSCD被引
30
次
|
|
|
|
|
17.
Feng Duan.
Metal Physics [M]. Book 1,2000:505
|
CSCD被引
1
次
|
|
|
|
|
18.
Zieba P. Discontinuous precipitation in cobalt-tungsten alloys.
Acta Materialia,1997,45(5):2093-2099
|
CSCD被引
1
次
|
|
|
|
|
19.
Geber G P. Discontinuous precipitation in a Ni-In alloy studied by analytical field ion microscopy.
Acta Materialia,1997,45(5):2167-2175
|
CSCD被引
1
次
|
|
|
|
|
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