Zobrazeno 1 - 10
of 878
pro vyhledávání: '"Grain boundary engineering"'
Dislocation network mediated grain boundary engineering in an additively manufactured titanium alloy
Autor:
Chunlei Qiu, Xu Chen
Publikováno v:
Materials Research Letters, Vol 12, Iss 11, Pp 797-805 (2024)
Continuous grain boundary α (CGB-α) usually causes degradation of mechanical properties in titanium alloys. Here, we propose to employ dislocation network in an additively manufactured titanium alloy for GB engineering to suppress CGB-α. A C-beari
Externí odkaz:
https://doaj.org/article/9860e23dfc20458b96932e164ca35aff
Autor:
Dongyang Hao, Qian Wang, Haikun Ma, Dayong Wu, Jie Kang, Huicong Dong, Baocai You, Ning Li, Ru Su
Publikováno v:
Materials & Design, Vol 248, Iss , Pp 113525- (2024)
Thermomechanical processing as the main method of grain boundary engineering (GBE), can modulate the grain boundary character distribution (GBCD) in turn affects the mechanical properties and stability of alloys at high temperature. In this study, th
Externí odkaz:
https://doaj.org/article/86ea700f0f7c4a4490957a43924b447c
Autor:
Yipeng Gao, Cheng Kong, Chunfeng Du, Jiyuan Ding, Haipeng Li, Yuchao Song, Heng-Nan Liang, Hui-Yuan Wang
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 733-754 (2024)
Introducing coherent twin boundaries is an effective way to develop submicron/nano-sized grains with improved thermal stability in polycrystals, which exhibit enhanced mechanical properties of metals, such as high strength, high hardness and high fra
Externí odkaz:
https://doaj.org/article/d18734c0de1c433ba93c819c541ed4ec
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 146-163 (2024)
The effect of special grain boundary development via the grain boundary engineering process (GBE) was explored in a bimodal microstructured 316L austenitic stainless steel with an average grain size of 1.92 μm. The GBE process was carried out by the
Externí odkaz:
https://doaj.org/article/fb79beb29bb241eea6f27cbabf3ebe50
Autor:
Stanley Abbey, Hanhwi Jang, Brakowaa Frimpong, Van Quang Nguyen, Jong Ho Park, Su‐Dong Park, Sunglae Cho, Yeon Sik Jung, Ki‐Ha Hong, Min‐Wook Oh
Publikováno v:
Advanced Science, Vol 11, Iss 35, Pp n/a-n/a (2024)
Abstract Manipulating the grain boundary and chiral structure of enantiomorphic inorganic thermoelectric materials facilitates a new degree of freedom for enhancing thermoelectric energy conversion. Chiral twist mechanisms evolve by the screw disloca
Externí odkaz:
https://doaj.org/article/6e80e07fc4ba432f9a25e2e5f4c4c7c6
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3976-3989 (2024)
Nitrogen solid solution can effectively enhance the strength of steels, but its effect on grain boundary engineering and the corrosion mechanism of steels is still unclear and systematic investigation is needed. In this study, 316LN steel specimens w
Externí odkaz:
https://doaj.org/article/2f7bb3ea18ca480d831bef85ea49ce40
Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion
Publikováno v:
Materials Research Letters, Vol 11, Iss 10, Pp 814-820 (2023)
A multi-physics simulation model has been established to investigate the influence of Laser powder bed fusion parameters on the spatial composition distribution and grain growth mechanism of the single-track printed dissimilar alloys. Our study shows
Externí odkaz:
https://doaj.org/article/b741d1876a964344b331110bd4735f9e
Publikováno v:
Metals, Vol 14, Iss 9, p 960 (2024)
Grain boundary engineering (GBE) was carried out on a nickel-based alloy (GH3535, Ni-16Mo-7Cr-4Fe), which intrinsically has many strings of primary molybdenum carbides. The strings induce inhomogeneous grain size distributions and increase the diffic
Externí odkaz:
https://doaj.org/article/1bbd94f21e4d4615a6c048ae29e444aa
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 1245-1262 (2023)
In this work, a series of isothermal hot compression tests were performed at the temperature of 900–1150 °C with the strain rate ranging from 0.01 to 10s−1 in Inconel X-750 alloy (referred as Alloy X-750). Based on the flow stress data, the back
Externí odkaz:
https://doaj.org/article/953e6c1fc45a45be950dcfaa8bfe66d3
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 13-24 (2023)
Grain boundary engineering (GBE) is designed for metals to optimize the grain boundary characteristics and improve their resistance to intergranular corrosion (IGC). In this study, the effect of various GBE processing on the fraction of low ΣCSL gra
Externí odkaz:
https://doaj.org/article/1450aa860cfa4bf18d4b8689e663c271