Results 41 to 50 of about 341 (167)

Effect of microstructure and crystallographic orientation characteristics on low temperature toughness and fracture behavior of pipeline steels

Journal of Materials Research and Technology, 2022
In order to elucidate the relationship among microstructure, crystallographic orientation characteristics and fracture behavior of pipeline steels at low temperature, three pipeline steels with different microstructures were fabricated by varying the ...
He Duan, Yiyin Shan, Ke Yang, Xianbo Shi, Wei Yan   +4 more
doaj   +1 more source

Effect of B and N Content and Austenitization Temperature on the Tensile and Impact Properties of Modified 9Cr-1Mo Steels

Metals, 2023
The present study investigates the relative effect of B and N concentrations and the austenitization temperature on the microstructure and mechanical properties (tensile and Charpy impact) of modified 9Cr-1Mo (P91) steels.
Ravindran Rejeesh, Rakesh Kumar Barik, Rahul Mitra, Andrii Kostryzhev, Chitta R. Das, Shaju K. Albert, Debalay Chakrabarti   +6 more
doaj   +1 more source

A simple Rice-Ashby ductile–brittle transition temperature (DBTT) model based on dislocation mobility for body-centered cubic complex concentrated alloys

Materials & Design
A simple Rice-Ashby type model for ductile–brittle transition temperature (DBTT) of body-centered cubic (bcc) complex concentrated alloys (structures) is presented. The effect of accumulation of dislocation density on DBTT is also analyzed.
Satish I. Rao, Wenqing Wang, David H. Cook, Punit Kumar, Mark Asta, Robert O. Ritchie   +5 more
doaj   +1 more source

Effect of Microstructure on Low-Temperature Fracture Toughness of a Submerged-Arc-Welded Low-Carbon and Low-Alloy Steel Plate

Metals, 2021
This study investigated the low-temperature fracture behavior of an 80-mm-thick low-carbon steel plate welded by submerged arc. The relationship between impact absorbed energy and ductility–brittle transition temperature (DBTT) based on the ...
Byeong Chan Choi, Byoungkoo Kim, Byung Jun Kim, Yong-Wook Choi, Sang Joon Lee, Jong Bae Jeon, Yangdo Kim, Hyoung Chan Kim   +7 more
doaj   +1 more source

Embrittlement of chromium alloys after neutron irradiation at high temperatures to damage doses of 10–46 dpa

Nuclear Materials and Energy
The study of chromium alloys, including the low-alloyed BX-2 K alloy and Cr-Fe alloys alloyed with Zr, Y, Al, Mn, Mo additions, after irradiation at temperatures ranging from 400 to 1000 °C and neutron fluences of (2.0 − 9.3) × 1026 m−2 (E > 0.1 MeV ...
Vladimir Chakin, Ramil Gaisin, Carsten Bonnekoh, Michael Duerrschnabel, Michael Rieth, Bronislava Gorr, Mikola Brodnikikovsky, Mikola Krapivka, Sergey Firstov   +8 more
doaj   +1 more source

Effects of electroslag remelting process and Y on the inclusions and mechanical properties of the CLAM steel

Nuclear Engineering and Technology, 2020
Y-containing CLAM steels were melted via vacuum induction melting and electroslag remelting. In this study, the evolution, microstructure, and mechanical properties of the alloy inclusions (ESR-1 (0 wt.% Y), ESR-2 (0.016 wt.% Y) and ESR-3 (0.042 wt.% Y))
Guoxing Qiu, Dongping Zhan, Changsheng Li, Yongkun Yang, Zhouhua Jiang, Huishu Zhang   +5 more
doaj   +1 more source

Study of mechanisms of crack formation on tungsten composites using the three-point method

Vìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2022
The aim of this study was evaluated the ductile-to-brittle transition temperature (DBTT) and microstructure of miniaturized tungsten composites by three point bending method.
M.V. Lebedieva, D. Terentyev, А. Лінкова, S.V. Lebediev   +3 more
doaj   +1 more source

Influence of Tramp Elements on Phase Transformations, Structure, and Properties of Scrap‐Based Steels: A Focused Review of Recent Developments

steel research international, Volume 97, Issue 8, Page 4067-4084, August 2026.
This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley   +1 more source

Dynamic Control of Two‐Component Aggregation and Color‐Tunable Emission via Charge‐Transfer Coassembly

Aggregate, Volume 7, Issue 1, January 2026.
Charge‐transfer coassembly enables precise control over the dynamic aggregation process, resulting in morphology evolution from amorphous aggregates to rod‐like and needle‐like microcrystals, accompanied by a significant fluorescence enhancement. This strategy yields widely tunable solid‐state emission from green to orange‐red, unveiling fundamental ...
Huiting Mao, Xinqi Ge, Jiahui Guo, Zhibo Gong, Na Ding, Shijuan Liu, Guo‐Gang Shan, Ruinian Hua   +7 more
wiley   +1 more source

In Situ Tailoring of FCC Ductile Phases for High‐Strength Wear‐Resistant Crack‐Free W‐Based Metallic Coatings

Rare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Tungsten is inherently brittle and particularly prone to thermal stress concentration and crack formation during additive manufacturing processes such as laser cladding, which severely limits its engineering applications as a coating material. To address this issue, this study proposes an in situ toughening strategy involving the introduction ...
Guo‐Xing Chen, Ao Yan, Hui‐Qiang Ying, He Zhu, Zhi‐Guang Zhu, Hua Ji, Zong‐De Kou, Song Tang, Tao Feng, Qi Liu, Cheng‐Wei Liu, Jun‐Qiang Xu, Si Lan   +12 more
wiley   +1 more source