Acta Metall Sin  1994, Vol. 30 Issue (6): 264-268    DOI:

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FRACTAL ANALYSIS FOR HYDROGEN INDUCED DUCTILITY LOSSES

JIANG Hingang;CHU Wuyang; XIAO Jimei(University of Science and Technology;Beijing)(Manuscript received 21 July;1993;in revised form 1 september;1993)

JIANG Hingang;CHU Wuyang; XIAO Jimei(University of Science and Technology;Beijing)(Manuscript received 21 July;1993;in revised form 1 september;1993). FRACTAL ANALYSIS FOR HYDROGEN INDUCED DUCTILITY LOSSES. Acta Metall Sin, 1994, 30(6): 264-268.

Abstract References Related Articles Recommended Metrics Download:  PDF(286KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Based on a fractal model for ductile fracture,a theoretical formula of elongation to failure is established,i.e.,whereδstands for elongation,k for a constant,rs for surface energy,B,l and W for thickness,length and width of the specimen,respectively,ρ for area density of inclusions,d for average grain size and DF for the fractal dimension of the fracture surface.Bothδand DF for precharged 310 austenitic stainless steel decreased with the increase of charging time.Experiment showed that lnδ decreased linearly with the decrease of DF,which is consistent with above-mentioned formula.On the other hand, the formula also shows that the smallar the d,ρ and l,and the larger the W and B, the larger theδ,which conforms to the experimental results. Key words:  fractal      elongation      hydrogen induced ductility loss      Received:  18 June 1994      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/Y1994/V30/I6/264 1DauskarktRH,HaubensakF,RitchieO．ActaMetall．,1990;B39:1432LangCW,MuZQ．PhysRew1988;38:11783穆在勤,龙期威．金属学报,1988;24:A1424陈军,龙起易,陈继志,龙期威．中国腐蚀与防腐学报,1991;11:3445张跃,褚武扬,王燕斌,肖纪美．金属学报,1993:29:A3936穆在勤,李淑清,龙期威．材料科学进展,1990;4:2477PandeCS,RichardsLE,LouatN,DempseyBD,SchebleAJ．ActaMetall,1987;35:16338LeTD,BernsteinIM．ActaMetallMater,1991;39:3639CialoneH,AsaroRT．HydrogeninMetals,SupplPressJIM21,1980,76710褚武扬著．氢损伤与滞后断裂．北京:冶金出版社,1988: [1] CHENG Yuanyao, ZHAO Gang, XU Deming, MAO Xinping, LI Guangqiang. Effect of Austenitizing Temperature on Microstructures and Mechanical Properties of Si-Mn Hot-Rolled Plate After Quenching and Partitioning Treatment[J]. 金属学报, 2023, 59(3): 413-423. [2] YANG Du, BAI Qin, HU Yue, ZHANG Yong, LI Zhijun, JIANG Li, XIA Shuang, ZHOU Bangxin. Fractal Analysis of the Effect of Grain Boundary Character on Te-Induced Brittle Cracking in GH3535 Alloy[J]. 金属学报, 2023, 59(2): 248-256. [3] CAO Jianghai, HOU Zibing, GUO Zhongao, GUO Dongwei, TANG Ping. Effect of Superheat on Integral Morphology Characteristics of Solidification Structure and Permeability in Bearing Steel Billet[J]. 金属学报, 2021, 57(5): 586-594. [4] SUN Heng,LIN Xiaoping,ZHOU Bing,ZHAO Shengshi,TANG Qin,DONG Yun. Microstructures and Tensile Deformation Behavior of Directionally Solidified Mg-xGd-0.5Y Alloys[J]. 金属学报, 2020, 56(3): 340-350. [5] Zibing HOU,Jianghai CAO,Yi CHANG,Wei WANG,Han CHEN. Morphology Characteristics of Carbon Segregation in Die Steel Billet by ESR Based on Fractal Dimension[J]. 金属学报, 2017, 53(7): 769-777. [6] Zheng LIU,Lina XU,Zhaofu YU,Yangzheng CHEN. RESEARCH ON THE MORPHOLOGY AND FRACTALDIMENSION OF PRIMARY PHASE IN SEMISOLIDA356-La ALUMINUM ALLOY BY ELECTRO-MAGNETIC STIRRING[J]. 金属学报, 2016, 52(6): 698-706. [7] Ke ZHANG,Qilong YONG,Xinjun SUN,Zhaodong LI,Peilin ZHAO. EFFECT OF COILING TEMPERATURE ON MICRO-STRUCTURE AND MECHANICAL PROPERTIES OF Ti-V-Mo COMPLEX MICROALLOYED ULTRA-HIGH STRENGTH STEEL[J]. 金属学报, 2016, 52(5): 529-537. [8] Zheng LIU,Jiayi ZHANG,Haolin LUO,Keyue DENG. RESEARCH ON MORPHOLOGY EVOLUTION OF PRIMARY PHASE IN SEMISOLID A356 ALLOY UNDER CHAOTIC ADVECTION[J]. 金属学报, 2016, 52(2): 177-183. [9] Liansheng CHEN, Jianyang ZHANG, Yaqiang TIAN, Jinying SONG, Yong XU, Shihong ZHANG. EFFECT OF Mn PRE-PARTITIONING ON C PARTITIONING AND RETAINED AUSTENITE OF Q&P STEELS[J]. 金属学报, 2015, 51(5): 527-536. [10] Xiaolin LI, Zhaodong WANG. EFFECT OF ONE STEP Q&P PROCESS ON MICRO- STURCTURE AND MECHANICAL PROPERTIES OF A DUAL MARTENSITE STEEL[J]. 金属学报, 2015, 51(5): 537-544. [11] LI Xiaolong, GUO Zhenghong, RONG Yonghua, WU Haiyang, YAO Shengfa. 600 MPa GRADE REBAR WITH HIGH DUCTILITY DEVELOPED BASED ON THEORY OF YIELD PLATEAU[J]. 金属学报, 2014, 50(4): 439-446. [12] ZHAO Zhengzhi, TONG Tingting, ZHAO Aimin, HE Qing, DONG Rui, ZHAO Fuqing. MICROSTRUCTURE, MECHANICAL PROPERTIES AND WORK HARDENING BEHAVIOR OF 1300 MPa GRADE 0.14C-2.72Mn-1.3Si STEEL[J]. 金属学报, 2014, 50(10): 1153-1162. [13] GUAN Zhiping, MA Pinkui, SONG Yuquan. ANALYSIS OF FRACTURE DURING SUPERPLASTIC TENSION[J]. 金属学报, 2013, 49(8): 1003-1011. [14] YAN Shu, LIU Xianghua, LIU WJ, LAN Huifang, WU Hongyan. MICROSTRUCTURE, MECHANICAL PROPERTIES AND STRENGTHENING MECHANISMS OF A Cu BEARING LOW-CARBON STEEL TREATED BY Q&P PROCESS[J]. 金属学报, 2013, 49(8): 917-924. [15] NIE Wenjin SHANG Chengjia GUAN Hailong ZHANG Xiaobing CHEN Shaohui. CONTROL OF MICROSTRUCTURES OF FERRITE/ BAINITE (F/B) DUAL-PHASE STEELS AND ANALYSIS OF THEIR RESISTANCE TO DEFORMATION BEHAVIOR[J]. 金属学报, 2012, 48(3): 298-306. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed