腐蚀疲劳波形效应的裂尖析氢、输氢模型与试验验证

中国腐蚀与防护学报

1994, Vol. 14

Issue (4): 255-264

研究报告

本期目录 | 过刊浏览

腐蚀疲劳波形效应的裂尖析氢、输氢模型与试验验证

路民旭;刘晓坤;王建军;郑修麟

西北工业大学

A MODEL OF HYDROGEN EVOLUTION AND TRANSPORT AT CRACK TIP FOR DESCRIBING THE EFFECT OF WAVEFORM ON CORROSION FATIGUE AND THE EXPERIMENTAL VERIFICATION THEREOF

Lu Minxu; Liu Xiaokun; Wang Jianjun; Zheng Xiulin(Northwestern Polytechnical University)

全文: PDF(1621 KB)

摘要: 把裂尖表面形变动力学和裂尖表面析氢反应电化学动力学相结合，对裂尖表面析氢反应的波形效应进行了定量分析．把裂尖形变动力学与位错运动动力学相结合，提出了氢的接力式位错输送概念，并建立了波形效应的位错输氢模型．用上述定量模型与理论对正锯齿波、三角波和负锯齿波三种波形的腐蚀疲劳裂纹扩展速率的相对大小进行了预测．为验证上述模型，还用疲劳测试和断口分析方法研究了三种波形对ＧＣ－４（４０ＣｒＭｎｓｉＭｏＶＡ）钢在３．５％ＮａＣｌ溶液中的腐蚀疲劳裂纹扩展特性的影响．试验结果与模型预测结果十分吻合．

关键词 ：腐蚀疲劳裂纹扩展, 波形效应, 裂尖析氢模型, 位错输氢模型

Abstract：A quantitative analysis based on comprehensive kinetic consideration of deformation and electro chemical hydrogen evolution reaction on crack tip surface was carried out for the effect of waveform on hydrogen evolution reaction.A new concept was proposed of dislocation transport of hydrogen atom in metal matrix interior at the crack tip.On the basis of this concept,a quantitative model was developed of the effect of waveform on hydrogen dislocation transport process.Then the relative magnitude of corrosion fatigue craCk growth rate was calculated and compared with for the three waveforms including triangle(TR), positive sawtooth(PS),and negative sawtooth(NS).Finally,experimental studies were conducted with these three waveforms for GC-4(40CrMnSiMoVA) steel in 3.5% NaCl solution by measurement of macroscopic fatigue behaviour and by observation of microscopic fracture features.It was concluded thatthe test results are in very good agreement with the predicted results.

Key words： Corrosion fatigue crack growth; Waveform effect; Crack tip hydrogen evolution model; Hydrogen dislocation transport model

收稿日期: 1994-08-25

基金资助:国家自然科学基金

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	路民旭
	刘晓坤
	王建军
	郑修麟
44.8K

引用本文:

路民旭;刘晓坤;王建军;郑修麟. 腐蚀疲劳波形效应的裂尖析氢、输氢模型与试验验证[J]. 中国腐蚀与防护学报, 1994, 14(4): 255-264.
. A MODEL OF HYDROGEN EVOLUTION AND TRANSPORT AT CRACK TIP FOR DESCRIBING THE EFFECT OF WAVEFORM ON CORROSION FATIGUE AND THE EXPERIMENTAL VERIFICATION THEREOF. J Chin Soc Corr Pro, 1994, 14(4): 255-264.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1994/V14/I4/255

1AiyamaS．ShojiI,TakashiH,SuzukiM．Corrosion,1978,34(10):3252KawakuboI,HishidM,AmonoK,KatsutaM．Corrosion,1980,36(11):6383NakasaK,TakaiH,KajiwaraK．Eng．Fract．Mech,1981,14(3):5074KawaiS,KoibuchiK．Fat．Engng．Mater．Struct,1979,1(4):3955AndresenL,ForkFP．Mater．Sci．Engng,1988,A103(1):1076路民旭,郑修麟,秦熊浦·中国腐蚀与防护学报,1991,11(3):1977TurnbullA,SenzdeSantaMariaM．Metall．Thans．A,1988,19A(7):17958KnottJF．疲劳裂纹扩展模型．In:SmithRAed,顾海澄译,疲劳裂纹扩展-30年来的进展．西安:西安交通大学出版社,1988,19-449ParkinsRN．Mater．Sci．Engng,1988,A103(1):14310TienJK,ThompsonAW,BernsteinIM,RichardsRJ．Metall．Trans．A,1976,7A(6):82111NairSV,JensenRR,TienJK．Metall．Trans．A,1983,14A(3):38512HirthJP．Metall．Thans．A,1980,11A(6):86113褚武杨著．氢损伤和滞后断裂．北京:冶金工业出版社,1988,3914HeubaumFH,BerkowitzBJ．Scr．Metall,1982,16:65915王昆林,董志娟,朱允明,徐坚,孙秀魁．材料科学进展,1992,6(3):21416赖祖涵编．金属的晶体缺陷与力学性质．北京:冶金工业出版社,1988,21217路民旭,刘晓坤,王建军,郑修麟,航空学报,1990,11(12):B61718刘晓坤,王建军,路民旭．航空学报,198民9(13):S14019路民旭,刘晓坤,王建军,傅祥炯,郑修麟．金属学报,1991,27(6):B403

[1]	王荣. 腐蚀疲劳裂纹扩展的断裂模型[J]. 中国腐蚀与防护学报, 1998, 18(2): 87-94.
[2]	路民旭;郑修麟. 超高强度钢CF裂纹扩展的超载效应　Ⅰ.定量模型及预测[J]. 中国腐蚀与防护学报, 1994, 14(3): 184-192.
[3]	路民旭;郑修麟. 超高强度钢CF裂纹扩展的超载效应　Ⅱ.试验验证与分析[J]. 中国腐蚀与防护学报, 1994, 14(3): 193-200.
[4]	路民旭;郑修麟. 应力比和频率对GC-4钢CF裂纹扩展特性的影响[J]. 中国腐蚀与防护学报, 1994, 14(2): 95-105.

Viewed

Full text

Abstract

Cited

Shared

Discussed