Zobrazeno 1 - 10
of 2 473
pro vyhledávání: '"austenite grain"'
Autor:
Jun Zhao, Zi-yong Hou, Bo Wang, He Yang, Ya-ru Wang, Zhi-yuan Chang, Ling Zhang, Gui-lin Wu, Xiao-xu Huang
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 2794-2802 (2024)
The correlation of prior austenite grain (PAG) size, mechanical properties, and the variant selection in martensite transformation of a 2 GPa grade automobile steel has been systematically investigated by using a combination of scaning electron micro
Externí odkaz:
https://doaj.org/article/873f4bdc9a344cb8a024e1d7c00f42fb
Autor:
Rahul Ranjan, Anil Meena
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 3652-3666 (2024)
The reactor pressure vessel (RPV) in nuclear power plants is mainly made from Mn–Ni–Mo steel. After quenching, this steel's microstructure features martensite-austenite (M-A) islands. Tempering above 600 °C poses a challenge, as these islands ca
Externí odkaz:
https://doaj.org/article/cafdfd63aa78432ca6c15d3e07e239a2
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 565-579 (2024)
The state of austenite grains has an essential role in the microstructure transformation and mechanical properties of alloy steel during heat treatment or subsequent hot working. The initial microstructure of alloy steel is inseparable from the nucle
Externí odkaz:
https://doaj.org/article/68c32a17277c45c7a4a3298b8cb23f11
Publikováno v:
工程科学学报, Vol 45, Iss 11, Pp 1878-1895 (2023)
With the implementation of the global two-carbon policy, energy saving and CO2 emission reduction have become important developmental goals of the automobile manufacturing industry. At present, the combination of high temperature for the automobile g
Externí odkaz:
https://doaj.org/article/be93f38a0e4e4944b0c805e0292a28a1
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 2524-2537 (2023)
Effects of heating temperature, heating rate, and holding time on the austenitization process of near-eutectoid high-carbon steel have been investigated. The dilatometric tests were carried out at different heating rates of 1–100 °C/Sec. The Ac1 a
Externí odkaz:
https://doaj.org/article/12c1a14f0ab541589ba771491905a623
Autor:
Elahe Akbari, Philipp Kürnsteiner, Katharina Steineder, Martin Gruber, Martin Arndt, Ilse Letofsky-Papst, Robert Sierlinger, Heiko Groiss
Publikováno v:
Materials & Design, Vol 237, Iss , Pp 112584- (2024)
The addition of boron to the advanced high-strength steels (AHSS) enhances grain boundary cohesion and can play a significant role in intergranular degradation phenomena such as Zn-assisted liquid metal embrittlement (LME). The objective of this stud
Externí odkaz:
https://doaj.org/article/b58af2a37f8e4d70be839eb3ab74b491
Autor:
Xian-guang ZHANG, Huan LIU, Jian ZHANG, Hong-li WANG, Ying-jie REN, Wen-chao YANG, Jia-jun CHEN, Peng SHI
Publikováno v:
工程科学学报, Vol 45, Iss 6, Pp 915-926 (2023)
Austenite reversion has been widely used in the traditional heat treatment of steels, and recently, it has been used in the fabrication of advanced high-strength steels. The microstructure of reverted austenite significantly influences the final micr
Externí odkaz:
https://doaj.org/article/ae45371605ab471a95677534209a708c
Publikováno v:
工程科学学报, Vol 45, Iss 6, Pp 907-914 (2023)
The composite oxides of Ti and Zr can effectively induce acicular ferrite nucleation and refine austenite grain size. To study the transformation mechanism of acicular ferrite in Ti–Zr treated steel, the mass fraction of 0.038% titanium and 0.008%
Externí odkaz:
https://doaj.org/article/e3bcc57b809f48fd80403586cd61cce4
Autor:
Shaojie Lv, Hong-Hui Wu, Kaiyang Wang, Jiaming Zhu, Shuize Wang, Guilin Wu, Junheng Gao, Xu-Sheng Yang, Xinping Mao
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 9630-9643 (2023)
The austenite to ferrite phase transformation is a critical structural transformation in steel production, where the morphology and grain size of ferrite substantially influence the mechanical properties of steel materials. In this work, the influenc
Externí odkaz:
https://doaj.org/article/f96719a648684dbfa5bf38258b0ea828
Publikováno v:
Metals, Vol 14, Iss 4, p 469 (2024)
The paper deals with the effect of the morphology characteristics, grain size, and the volume fraction of AlN- and NbC-precipitated particles on the prior austenite grain growth behavior in the Al- and Nb-microalloying 20MnCr gear steel during pseudo
Externí odkaz:
https://doaj.org/article/ae6ed842cdb84009871ca116820cac0e