Unraveling the Effect of Retained Austenite on the Very High Cycle Fatigue Crack Initiation Mechanism of Carbide-Free Bainitic Steel

被引:0
作者
Wang, Kun [1 ]
Gao, Guhui [1 ]
Gui, Xiaolu [1 ]
Ma, Jianyi [2 ]
Zhu, Lijuan [3 ]
Feng, Chun [3 ,4 ]
机构
[1] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing, Peoples R China
[2] Daye Special Steel Co LTD, Huangshi, Peoples R China
[3] Tubular Goods Res Inst CNPC, State Key Lab Performance & Struct Safety Petr Tub, Xian, Peoples R China
[4] CNPC Bohai Equipment Mfg Co Ltd, Tianjin, Peoples R China
关键词
bainite; microstructure; non-inclusion crack initiation; retained austenite; very high cycle fatigue; DUPLEX STAINLESS-STEEL; HIGH-STRENGTH STEEL; DYNAMIC RECRYSTALLIZATION; PLASTIC-DEFORMATION; LATH MARTENSITE; PROPAGATION; BEHAVIOR; LIFE; MICROSTRUCTURE; MORPHOLOGIES;
D O I
10.1111/ffe.70023
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The very high cycle fatigue behaviors of a carbide-free bainitic steel were investigated to unravel the mechanisms of two types of non-inclusion induced crack initiation characteristic areas with different morphologies and to explore the role of retained austenite. Results show that in preferentially oriented conditions, the dislocation slips are difficult to activate in the inter-lath nanometer-sized retained austenite. Consequently, the fatigue crack initiates from coarse bainitic ferrite lath with preferred orientation and high Schmid factor, resulting in the formation of inclined micro-facet within the crack initiation characteristic area, which is dominated by mode II cracking. However, for the submicron-sized retained austenite and the non-preferentially orientated bainitic ferrite, dislocation slips preferentially occur along their phase interfaces and impinge into the prior austenite grain boundaries, resulting in the generation of extrusions at grain boundaries and the final intergranular crack initiation. In this situation, the formation of micro-facet still takes place but may be controlled by mode I cracking. These findings provide new insights into the relationship between microstructural features and cyclic loading that could lead to different mechanisms of non-inclusion induced crack initiation.
引用
收藏
页数:14
相关论文
共 64 条
[1]   Retained austenite-aided cyclic plasticity of the quenched 9Ni steel [J].
Araujo, Mahira A. Cota ;
Vogt, Jean-Bernard ;
Bouquerel, Jeremie .
INTERNATIONAL JOURNAL OF FATIGUE, 2021, 152
[2]   High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships [J].
Bouaziz, O. ;
Allain, S. ;
Scott, C. P. ;
Cugy, P. ;
Barbier, D. .
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2011, 15 (04) :141-168
[3]   Design of novel high strength bainitic steels: Part 1 [J].
Caballero, FG ;
Bhadeshia, HKDH ;
Mawella, KJA ;
Jones, DG ;
Brown, P .
MATERIALS SCIENCE AND TECHNOLOGY, 2001, 17 (05) :512-516
[4]   Formation of fine granular area in a non-defect matrix of austenitic stainless steel during very high cycle fatigue [J].
Chai, Guocai ;
Bergstrom, Jens ;
Burman, Christer .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2023, 46 (06) :2364-2373
[5]   The formation of subsurface non-defect fatigue crack origins [J].
Chai, Guocai .
INTERNATIONAL JOURNAL OF FATIGUE, 2006, 28 (11) :1533-1539
[6]   Fatigue crack growth in TRIP steel under positive R-ratios [J].
Cheng, Xu ;
Petrov, Roumen ;
Zhao, Lie ;
Janssen, Michael .
ENGINEERING FRACTURE MECHANICS, 2008, 75 (3-4) :739-749
[7]   Evolution of surface deformation during fatigue of PH13-8Mostainless steel using atomic force microscopy [J].
Cretegny, L ;
Saxena, A .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2002, 25 (03) :305-314
[8]   Fundamentals and application of solid-state phase transformations for advanced high strength steels containing metastable retained austenite [J].
Dai, Zongbiao ;
Chen, Hao ;
Ding, Ran ;
Lu, Qi ;
Zhang, Chi ;
Yang, Zhigang ;
van der Zwaag, Sybrand .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2021, 143
[9]   Morphologies and characteristics of deformation induced martensite during low cycle fatigue behaviour of austenitic stainless steel [J].
Das, Arpan ;
Sivaprasad, S. ;
Chakraborti, P. C. ;
Tarafder, S. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (27) :7909-7914
[10]   Multiple Fatigue Failure Behaviors and Long-Life Prediction Approach of Carburized Cr-Ni Steel with Variable Stress Ratio [J].
Deng, Hailong ;
Li, Wei ;
Zhao, Hongqiao ;
Sakai, Tatsuo .
MATERIALS, 2017, 10 (09)