Zobrazeno 1 - 10
of 466
pro vyhledávání: '"σ phase"'
Autor:
Tiancheng Li, Haiyang Chen, Yubo Huang, Qiang Hao, Hongchuan Ma, Zaifeng Zhou, Shilei Li, Yan-Dong Wang
Publikováno v:
Materials Research Letters, Vol 12, Iss 12, Pp 895-902 (2024)
In the present (CoCrNi)92Mo2Al6 medium entropy alloy (MEA), a dual heterogeneous structure is achieved by regulating the degree of recrystallization of the FCC matrix and σ phase precipitation through incomplete annealing. Compared to the alloys wit
Externí odkaz:
https://doaj.org/article/02be273da4a74ae1898dacd766c66acc
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 3842-3856 (2024)
The mechanical and corrosion properties of duplex stainless steels (DSS) depend on the distribution of ferrite and austenite as well as the presence of secondary phases. It is therefore necessary to accurately determine both the distribution of the p
Externí odkaz:
https://doaj.org/article/a0bcf7bdbdb6489d96b8801465351a59
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 3515-3525 (2024)
Multi-principal component alloy has been proved to form disordered solid solution in most cases. However, multi-principal component alloy with single phase solid solution has a few disadvantages in mechanical properties, such as low strength or poor
Externí odkaz:
https://doaj.org/article/b327f3cd59594503abafc0fa565a1554
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 7871-7881 (2023)
Strain-induced precipitation (SIP) behaviors of 7Mo super-austenitic stainless steel (SASS) were studied by strain relaxation test at 850 °C. Our results reveal that sigma (σ) phases are the predominant SIP of 7Mo SASS, with the chemical formula of
Externí odkaz:
https://doaj.org/article/9a1da8fe0f5b4cda92d058d5fd31d083
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 4278-4289 (2023)
In this study, 1.0 wt%Al element was added into the traditional 26.8Cr-3.7Mo–2Ni super-ferritic stainless steel to tailor the brittle phase precipitation, recrystallization microstructure and mechanical property via solution annealing at temperatur
Externí odkaz:
https://doaj.org/article/65041aefba2e4fe9938bca73f0177dd7
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 999-1005 (2023)
Topologically close-packed phases (TCP phase), with ordered dense-stacked structure, realize the atomic diffusion at high temperatures by forming the defects. In this study, we investigated the σ → γ transformation process at high temperature in
Externí odkaz:
https://doaj.org/article/91165dfbf62c43e7814d47ebae861101
Autor:
Jiangtao Yu, Shucai Zhang, Huabing Li, Zhouhua Jiang, Hao Feng, Binbin Zhang, Hongchun Zhu, Yubo Dai
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 7108-7120 (2023)
The influence mechanisms of Ce addition on the precipitation behaviour of σ phase and nitrides were systematically investigated. The results demonstrated that the addition of Ce significantly promoted the nucleation and slightly inhibited the growth
Externí odkaz:
https://doaj.org/article/a9c4eb2d6a184bdf8a9596e9deb4f375
Autor:
Jing-kun Li, Bin-guo Fu, Tian-shun Dong, Guo-lu Li, Wen-qing Sheng, Yong-yue Liu, Jia-geng Liu
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 6238-6245 (2023)
The effect of cold rolling reduction on the precipitation of σ phase at 800 °C in the 2906 DSS was investigated. The results show that the precipitation rate of the σ phase is improved with the increase of rolling reduction, and the maximum volume
Externí odkaz:
https://doaj.org/article/cd0aa76f0cf449fb9e02b0fbbff96ff8
Publikováno v:
Journal of Materials Research and Technology, Vol 22, Iss , Pp 1238-1249 (2023)
Effect of Ce and Mn on solidification behaviors and mechanical properties of 7Mo super austenitic stainless steel was investigated via in-situ observations, thermodynamic calculations and microstructural characterization. The results show that the ne
Externí odkaz:
https://doaj.org/article/d75aa0b737db41e8a6049466e418ef4e
Publikováno v:
Journal of Materials Research and Technology, Vol 21, Iss , Pp 1248-1255 (2022)
In-situ observation and microstructure analysis were combined with the nanoindentation to study the effect of the orientation relationship between the σ and γ phases on the mechanical property of the 7Mo super austenite stainless steel. The results
Externí odkaz:
https://doaj.org/article/558f304502154a5e9dfb86139e0eebb1