| Ultrahigh surface hardness and excellent hardness gradient induced by ultrafine dual-carbides in a novel stainless bearing steel | |
Wang W(王为)1 ; Yang MX(杨沐鑫)1; Wang, Jing1; Xie JJ(谢季佳)1,2; Wang, Jian1,2; Zhang ZH(张子晗)1,2; Zhou LL(周玲玲)1,2; Wu XL(武晓雷)1,2; Cao, Wenquan3; Yuan FP(袁福平)1,2
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| Corresponding Author | Wu, Xiaolei([email protected]) ; Yuan, Fuping([email protected]) |
| Source Publication | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
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| 2024-05-01 | |
| Volume | 30Pages:7420-7428 |
| ISSN | 2238-7854 |
| Abstract | A novel alloy composition design (Fe-14Cr-13Co-5Mo-2Ni-1W-1V-0.16C-0.12Nb-0.074Si-0.027Mn, wt. %) was proposed for modification on that of the conventional CSS-42L stainless steel. The present homogeneous structure without carburizing displays an excellent synergy of yield strength and fracture toughness, which should improve the performance of the corresponding case-carburized steels under the contact/bending fatigue conditions. An ultrahigh surface hardness (71 HRC) and an excellent hardness gradient along the depth are achieved in the present case-carburized gradient structure. Higher surface hardness at a temperature range of 200-400 degrees C is also observed in the present case-carburized gradient structure, as compared to the other casecarburized advanced bearing/gear steels, such as the M50 steel, the M50NiL steel and the conventional CSS42L steel. Besides the previously reported M6C carbides in the case-carburized conventional CSS-42L steel, M7C3 carbides are newly discovered in the present case-carburized gradient structure due to the novel chemical design. The ultrahigh surface hardness at both room and high temperatures and the excellent hardness gradient distribution in the present case-carburized gradient structure should be attributed to the increased amount of dual-carbides, as well as the ultrafine dual-carbides embedded in the ultrafine martensite matrix. The superior mechanical properties of the present case-carburized gradient structure should be desirable for real bearing/gear applications. |
| Keyword | Aerospace bearing steel Ultrahigh surface hardness Hardness gradient Dual-carbides CSS-42L Case-carburized |
| DOI | 10.1016/j.jmrt.2024.05.159 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001294697100001 |
| WOS Keyword | ROLLING-CONTACT FATIGUE ; RESIDUAL-STRESSES ; PART I ; MICROSTRUCTURE ; TOUGHNESS ; PROPAGATION ; TRANSITION ; STRENGTH ; DUCTILE ; M50NIL |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | NSFC[11988102] ; National Natural Science Foundation of China[52192591] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0510300] ; National Key R&D Program of China[2019YFA0209902] |
| Funding Organization | NSFC ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Wu, Xiaolei ; Yuan, Fuping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96344 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Natl Engn Res Ctr Adv Steel Technol, Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China |
| Recommended Citation GB/T 7714 | Wang W,Yang MX,Wang, Jing,et al. Ultrahigh surface hardness and excellent hardness gradient induced by ultrafine dual-carbides in a novel stainless bearing steel[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,30:7420-7428.Rp_Au:Wu, Xiaolei, Yuan, Fuping |
| APA | 王为.,杨沐鑫.,Wang, Jing.,谢季佳.,Wang, Jian.,...&袁福平.(2024).Ultrahigh surface hardness and excellent hardness gradient induced by ultrafine dual-carbides in a novel stainless bearing steel.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,30,7420-7428. |
| MLA | 王为,et al."Ultrahigh surface hardness and excellent hardness gradient induced by ultrafine dual-carbides in a novel stainless bearing steel".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 30(2024):7420-7428. |
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