| Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel | |
| Alternative Title | Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel |
| Liu Tianlong1; Chen Lijia1; Bi Hongyun2; Che Xin1 | |
| 2014 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 27Issue:3Pages:452-456 |
| Abstract | In order to understand the effect of Mo element on the high-temperature fatigue behavior of 15CrNbTi ferritic stainless steel, the stress-controlled fatigue tests have been performed for both 15CrNbTi and 15Cr0.5MoNbTi ferritic stainless steels at 800 degrees C in laboratory air. The fatigue test results indicate that the fatigue resistance of 15Cr0.5MoNbTi steel is manifestly higher than that of 15CrNbTi steel at the maximum stress below 57 MPa; the 15Cr0.5MoNbTi steel possesses a fatigue limit of 35 MPa, which is higher than that of 15CrNbTi steel. The TEM observations reveal that the Mo element can suppress the formation of coarsened Fe3Nb3C precipitates and result in the fatigue resistance enhancement. The dislocation networks formed during the cyclic load favor to improve the fatigue resistance of 15Cr0.5MoNbTi steel at 800 degrees C. |
| Other Abstract | In order to understand the effect of Mo element on the high-temperature fatigue behavior of 15CrNbTi ferritic stainless steel, the stress-controlled fatigue tests have been performed for both 15CrNbTi and 15Cr0.5MoNbTi ferritic stainless steels at 800 ℃ in laboratory air. The fatigue test results indicate that the fatigue resistance of 15Cr0.5MoNbTi steel is manifestly higher than that of 15CrNbTi steel at the maximum stress below 57 MPa; the 15Cr0.5MoNbTi steel possesses a fatigue limit of 35 MPa, which is higher than that of 15CrNbTi steel. The TEM observations reveal that the Mo element can suppress the formation of coarsened Fe_3Nb_3C precipitates and result in the fatigue resistance enhancement. The dislocation networks formed during the cyclic load favor to improve the fatigue resistance of 15Cr0.5MoNbTi steel at 800 ℃. |
| Keyword | TREATABLE ALUMINUM-ALLOYS PRECIPITATE MORPHOLOGY DUCTILE FRACTURE MICROSTRUCTURE STRENGTH NB HAZ Ferritic stainless steel High-temperature fatigue Mo Microstructure |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:5198094 |
| Citation statistics |
Cited Times:6[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/152672 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.Baosteel Grp, State Key Lab Dev & Applicat Technology Automobile S, Shanghai 201900, Peoples R China |
| Recommended Citation GB/T 7714 | Liu Tianlong,Chen Lijia,Bi Hongyun,et al. Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2014,27(3):452-456. |
| APA | Liu Tianlong,Chen Lijia,Bi Hongyun,&Che Xin.(2014).Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,27(3),452-456. |
| MLA | Liu Tianlong,et al."Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS 27.3(2014):452-456. |
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