Acta Metall Sin  1996, Vol. 32 Issue (5): 504-509    DOI:

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INFLUENCE OF SUPERPOSED SMALL LOADS ON FATIGUE CRACK PREPAGATION RATE OF A537 STEEL

WEI Xuejun; LI Jin; KE Wei(State Key Laboratory of Corrosion and Protection; Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; Shenyang 110015); (State Key Laboratory of Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)(Manuscript received 1995-08-23)

WEI Xuejun; LI Jin; KE Wei(State Key Laboratory of Corrosion and Protection; Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; Shenyang 110015); (State Key Laboratory of Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)(Manuscript received 1995-08-23). INFLUENCE OF SUPERPOSED SMALL LOADS ON FATIGUE CRACK PREPAGATION RATE OF A537 STEEL. Acta Metall Sin, 1996, 32(5): 504-509.

Abstract References Related Articles Recommended Metrics Download:  PDF(432KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The influence of small loads superposed upon principal cyclic load △P on the fatigue crack growth rate da/ dN has been studied for the single edge notched plate specimens of A537 steel, and the crack closure behaviour has been investgated by measurement of crack opening displacement with speckle interferometry(SPI) technique. The results showed that the small loads with amplitude below 30% △P had little influence on da/ dN caused by the principal load when they superposed on the bottom of △P; whereas the small loads with amplitude above 30% △P enhanced the crack growth in the same condition. All small loads superposed on the top of △P made the da / dN increased. It could be proved by the analysis of measured crack closure effect that the influence of small loads on da / dN is determined by crack closure, and the damage of crack tip material caused by the superposed small loads comes from the irreversible plastic deformation which only appears in a certain range of applied load. Key words:  A537 steel      fatigue crack growth      small load      crack closure      Received:  18 May 1996      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I5/504 1康晓第,黄振声．机械强度,1990;12:202 HeulerP,SeegerT．IntJ Fatigue,1986;8:2253陈进伟．中国科学院金属腐蚀与防护研究所硕士学位论文,19944 胡 俏．东北大学博士学位论文,19935 SocieDF,ArtwohlPJ．ASTMSTP714(AmericanSocietyforTestingandMaterials),1980:36WeiXJ,ZhouXY,LiJ,LiuGL,KeW．ActaMetallSin(EngEdition),1993,6B:4537ChenDL,WeissB,SticklerR．IntJFatigue,1994;16:4858魏学军,李劲,王俭秋,柯 伟．金属学报,待发表 [1] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. Effects of Stress Ratio on the Fatigue Crack Growth Rate Under Steady State of Selective Laser Melted TC4 Alloy with Defects[J]. 金属学报, 2023, 59(10): 1411-1418. [2] Chao XU, Qiliang NAI, Zhihao YAO, He JIANG, Jianxin DONG. Grain Boundary Oxidation Effect of GH4738 Superalloy on Fatigue Crack Growth[J]. 金属学报, 2017, 53(11): 1453-1460. [3] Qiliang NAI,Jianxin DONG,Maicang ZHANG,Zhihao YAO. INFLUENCE OF MULTI-MICROSTRUCTURE INTERACTION ON FATIGUE CRACK GROWTH RATE OF GH4738 ALLOY[J]. 金属学报, 2016, 52(2): 151-160. [4] YANG Jian, DONG Jianxin, ZHANG Maicang. HIGH TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF A NOVEL POWDER METALLURGY SUPERALLOY FGH98[J]. 金属学报, 2013, 49(1): 71-80. [5] LI Wei CHEN Zhenhua CHEN Ding TENG Jie. GROWTH BEHAVIOR OF FATIGUE CRACK IN SPRAY-FORMED SiCp/Al-7Si COMPOSITE[J]. 金属学报, 2011, 47(1): 102-108. [6] XIONG Ying CHEN Bingbing ZHENG Sanlong GAO Zengliang. STUDY ON FATIGUE CRACK GROWTH BEHAVIOR OF 16MnR STEEL UNDER DIFFERENT CONDITIONS[J]. 金属学报, 2009, 45(7): 849-855. [7] ZHU Mingliang XUAN Fuzhen ZHU Kuilong WANG Guozhen JIA Tianyao. EFFECT OF HEAT TREATMENT ON FATIGUE BEHAVIOR OF 25Cr2NiMo1V STEEL[J]. 金属学报, 2009, 45(3): 320-325. [8] LU Liantao LI Wei ZHANG Jiwang SHIOZAWA Kazuaki ZHANG Weihua. ANALYSIS OF ROTARY BENDING GIGACYCLE FATIGUE PROPERTIES OF BEARING STEEL GCr15[J]. 金属学报, 2009, 45(1): 73-78. [9] . The turning point in Paris region of fatigue crack growth in titanium alloy[J]. 金属学报, 2008, 44(8): 973-978 . [10] XIONG Ying. A TWO-PARAMETER DRIVING FORCE FOR FATIGUE CRACK GROWTH[J]. 金属学报, 2008, 44(11): 1348-1353 . [11] YU Huichen; ZHANG Yanji; SUN Yanguo; XIE Shishu; TANAKA Keisuke. Near Threshold Fatigue Crack Growth Behavior in Stainless Steel[J]. 金属学报, 2005, 41(7): 721-726 . [12] LI Hangyue; HU Naisai; HE Jiawen; ZHOU Huijiu(State Key Laboratory for Mechanical Behaviour of Metallic Materialas; Xi'an Jiaotong University; Xi'an 710049)Correspondent: HE Jiawen; professor Tel: (029)3268696; Fax: (029)3237910;E-mail: jwhe xjtudu. cn.. AN ANALYTICAL MODEL OF COMPRESSIVE RESIDUAL STRESS EFFECT ON CLOSURE[J]. 金属学报, 1998, 34(8): 847-851. [13] CHEN Wenzhe;ZHANG Sa;QIAN Kuangwu (Department of Materials; Fuzhou University; Fuzhou 350002)GU Haicheng (Institute of Materials; Xi'an Jiaotong University; Xi'an 710049)WANG Zhongguang (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015). FATIGUE CRACK GROWTH RATES AND FATIGUE THRESHOLDS OF CENTRIFUGAL SPRAY DEPOSITED Ti-48Al-2Mn-2Nb[J]. 金属学报, 1998, 34(1): 70-74. [14] No Author. EFFECT OF OVERLOAD OCCURENCE FREQUENCY ON FATIGUE CRACK GROWTH RATE OF STEEL A537[J]. 金属学报, 1997, 33(6): 583-587. [15] WANG Jianqiu; LI Jin; KE Wei(State Key Laboratory of Corrosion and Protection;Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences;Shenyang 110015)(Manuscript received 1995-12-22). EFFECT OF POLARIZATION ON DISLOCATION BEHAVIOURS OF A537 STEEL DURING LOW CYCLE CORROSION FATIGUE[J]. 金属学报, 1996, 32(7): 730-734. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed