Zobrazeno 1 - 10
of 7 495
pro vyhledávání: '"high strain rate"'
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 1176-1187 (2024)
The adiabatic shear band is a common dynamic failure mechanism in metal materials at high strain rates. In this work, a new approach was proposed to improve mechanical properties and inhibit the formation and propagation of the adiabatic shear band i
Externí odkaz:
https://doaj.org/article/c4b88252eee34f51943c0195cebd502e
Autor:
Lihong Jiang, Xiaogang Liu, Zhenghua Guo, Zheng Liu, Guangang Wang, Mingjie Zhao, Shanlin Wang, Junhua Cui
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2003-2013 (2024)
The effect of high strain rate on adiabatic shear susceptibility and microstructures in Al0.4CoCrFeNi high-entropy alloy (HEA) was examined using a split Hopkinson pressure bar (SHPB) and hat-shaped specimens. The results exhibit a clear strain-harde
Externí odkaz:
https://doaj.org/article/e7ae17248bb345f89af2317b9f7b41cb
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 6858-6869 (2024)
The investigation was motivated by the widespread use of ultra-high-strength steels in cable-stayed bridges and armor steel plates. These structures are exposed to elevated risks from extreme loads, including vehicle impacts and blast loadings. The s
Externí odkaz:
https://doaj.org/article/ffbd010cff0343f8ab8b21987e20cb43
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 5990-6002 (2024)
Quasi-static and high-rate tension and compression properties of an extruded AZ80 Mg alloy rod were investigated at loading rates of 0.001 and 500 s−1. Acquired stress – strain results show that tension and compression plastic deformations of AZ8
Externí odkaz:
https://doaj.org/article/b472f8d99740437e8b89964b4fca8349
Autor:
Cong Li, Shunbo Wang, Xue Fu, Jiucheng Zhao, Jianhai Zhang, Chengyu Shi, Xianke Li, Zhiyuan Zhu, Hongwei Zhao
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 4832-4846 (2024)
High strain rates and continuous real-time data acquisition are difficult to balance in existing impact indentation techniques. Meanwhile, the inaccuracy of the testing P-h curves limits the development of quantitative applications for dynamic testin
Externí odkaz:
https://doaj.org/article/af13b50435ab4e7a967c95b615c8597b
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 807-822 (2024)
This study utilized a modified split Hopkinson pressure bar apparatus to subject polypropylene fiber-reinforced foamed concrete (PPFRFC) to substantial deformation loading at high temperatures and strain rates. Based on experimental results, the stud
Externí odkaz:
https://doaj.org/article/6cc9e006c667405c98864d58de69ffc8
Autor:
Lihong Jiang, Xiaogang Liu, Mingjie Zhao, Shanlin Wang, Zhenghua Guo, Zheng Liu, Guangang Wang, Yida Zeng, Junhua Cui
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 5107-5117 (2024)
The grain refinement mechanism in the adiabatic shear band (ASB) of solution treated Ti–10V–2Fe–3Al alloy was investigated under high strain rates using a split Hopkinson pressure bar and hat-shaped specimens. The TEM results show that elongate
Externí odkaz:
https://doaj.org/article/0ccbf6bd17e346458787e62e2661b631
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 4110-4128 (2024)
In this study, we investigated the mechanical behavior and deformation mechanisms of as-cast and as-rolled WE43 at various strain rates and temperatures. Compression tests were carried out at ambient temperature under 900/s, 1400/s, and 2000/s, and a
Externí odkaz:
https://doaj.org/article/a322ac351dfc48a8b7fe3239e2a11965
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 2108-2120 (2024)
In this study, modifying the austenitizing temperature offers a strategically viable way towards creating blocky retained austenite (BRA) with varying sizes and morphologies in nanostructured bainitic steel, in strikingly contrast to the conventional
Externí odkaz:
https://doaj.org/article/cc2c419325824ef7b98a6732ff52d4cb
Autor:
Yong Xu, Liangliang Xia, Ali Abd El-Aty, Wenlong Xie, Shuaifeng Chen, Boris B. Khina, Artur I. Pokrovsky, Shi-Hong Zhang
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 2402-2409 (2024)
Developing high strain rate (HSR) forming technologies is significant for efficient and high-quality aerospace sheet metal parts manufacturing. Research on the deformation behaviors and micromechanism of materials under HSRs will contribute to the fu
Externí odkaz:
https://doaj.org/article/ce8bd63884e34b8ba40a0237f50a8510