Degradation Characteristics of Microstructure and Mechanical Properties for 9Cr-1MoVNb Steel aged under High-Temperature

被引：0
作者：
Jung, K. H. [1 ]
Kim, S. J. [1 ]
机构：
[1] Mokpo Natl Maritime Univ, Div Marine Engn, Mokpo, South Korea
来源：
ACTA PHYSICA POLONICA A | 2019年 / 135卷 / 05期
关键词：
HEAT-TREATMENT; CREEP; BEHAVIOR; STRESS; IMPACT; LATH; CAST;
D O I：
10.12693/APhysPolA.135.994
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Thermal aging was conducted at 650 degrees C until 1,000 h under the atmospheric environment to evaluate the degradation characteristics of microstructure and mechanical properties of 9Cr-1MoVNb steel. The analysis of the microstructure and carbide of aged specimens was conducted by scanning electron microscopy and energy dispersive X-ray spectroscopy. The mechanical properties were evaluated by tensile and Vickers hardness tests. In addition, fractured tensile specimens were characterized by using scanning electron microscopy and energy dispersive X-ray spectroscopy to observe the changes in fracture mode with aging time. As a result, loss of martensite lath, coarsening of M23C6 carbide, and precipitation of Laves phase were observed after aging for 100 h. Degradation leads to deterioration in mechanical properties due to the effect of the nucleation and coarsening of Cr-rich M23C6 carbide. However, the change in fracture mode was more affected by the Laves phase (Fe2Mo) than the M23C6.
引用
收藏
页码：994 / 998
页数：5
相关论文
共 50 条
[41]   Effect of Normalizing Temperature on Microstructure and Mechanical Properties of 11Cr-3Co-2.3W Steel [J].
Cui, Chenshuo ;
Gao, Xiuhua ;
Zhu, Chenglin ;
Hu, Deyong ;
Gao, Cairu ;
Liu, Zhenguang ;
Misra, Raja Devesh Kumar ;
Su, Guanqiao .
STEEL RESEARCH INTERNATIONAL, 2019, 90 (05)
[42]   Microstructure and mechanical properties of M62 high-speed steel powder consolidated by high-temperature gas extrusion [J].
Sivaprahasam D. ;
Chandrasekhar S.B. ;
Murugan K. ;
Prabhakar K.V.P. .
Sivaprahasam, D. (sprakash@arci.res.in), 1600, Taylor and Francis Ltd. (24) :52-57
[43]   Microstructure and high temperature mechanical properties of the new cladding steel of 15Cr-15Ni-Ti-Y [J].
Zhuang, Yan ;
Zhang, Xiaoxin ;
Zhang, Xinyue ;
Peng, Tao ;
Fan, Huiyang ;
Zeng, Xian ;
Yan, Qingzhi .
NUCLEAR MATERIALS AND ENERGY, 2022, 31
[44]   Microstructure Evolution and Mechanical Properties of 0.4C-Si-Mn-Cr Steel during High Temperature Deformation [J].
Zhang, Fei ;
Yang, Yang ;
Shan, Quan ;
Li, Zulai ;
Bi, Jinfeng ;
Zhou, Rong .
MATERIALS, 2020, 13 (01)
[45]   Correlation between microstructure and mechanical properties of high C-Cr cast steel [J].
Ibrahim, KM ;
Abbas, MA .
STEEL RESEARCH INTERNATIONAL, 2003, 74 (10) :646-651
[46]   The high-temperature oxidation and mechanical properties of the Cr/Zr and CrN/Zr coating [J].
Zhou, Teng ;
Gao, Xiong ;
Chen, Huan ;
Zhang, Rui-Qian ;
Shang, Lunlin ;
Zhang, Guangan ;
Cai, Zhen-Bing .
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES, 2022, 10 (03)
[47]   MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF A 6063-ALUMINUM-ALLOY AT HIGH-TEMPERATURE [J].
GEHANNO, H ;
BRECHET, Y ;
LOUCHET, F ;
BECHET, D .
PLASTICITY OF METALS AND ALLOYS - ISPMA 6, 1994, 97-9 :347-352
[48]   Experimental study of sandstone microstructure and mechanical properties under high temperature [J].
Zhao Yi-qing ;
Wu Chang-gui ;
Tin Ai-bing ;
Sun Hao .
ROCK AND SOIL MECHANICS, 2020, 41 (07) :2233-2240
[49]   Improvement of High-Temperature Mechanical Properties of Low-Carbon RAFM Steel by MX Precipitates [J].
Chen, Jianguo ;
Liu, Yongchang ;
Xiao, Yantong ;
Liu, Yihuan ;
Liu, Chenxi ;
Li, Huijun .
ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2018, 31 (07) :706-712
[50]   Effect of High-Temperature Ageing on Microstructure and Mechanical Properties of Linear Friction Welded S31042 Steel Joint [J].
Li Yanmo ;
Liu Chenxi ;
Yu Liming ;
Li Huijun ;
Wang Zumin ;
Liu Yongchang ;
Li Wenya .
ACTA METALLURGICA SINICA, 2018, 54 (07) :981-990
12345