Results 41 to 50 of about 1,508 (264)

Effect of Heat Treatment on Ductility and Precipitation Size of Additively Manufactured AlSi10Mg

Metals, 2022
Laser powder bed fusion (LPBF) is a promising technology to manufacture complex components. Aluminium (Al) alloys are extensively implemented in automotive and aerospace applications for their exceptional strength and stiffness to weight ratios. AlSi10Mg
Sandra Megahed, Jannik Bühring, Tobias Duffe, Aleksandar Bach, Kai-Uwe Schröder, Johannes Henrich Schleifenbaum   +5 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Atomistic insights into continuous and discontinuous precipitation in high-entropy alloys: Role of interfacial and elastic anisotropy

Materials & Design
An atomic-scale understanding of precipitation mechanisms is essential for elucidating and ultimately controlling the microstructure and properties of precipitation-strengthened high-entropy alloys (HEAs).
Q. Yu, S. Qiu, M.C. Niu, J.M. Guo, G.P. Zheng, Z.B. Jiao   +5 more
doaj   +1 more source

Creep Rupture Properties of Helium Implanted .GAMMA." Precipitation Strengthened Alloy. [PDF]

Journal of Nuclear Science and Technology, 1991
Creep rupture tests were carried out on a γ"-Ni3Nb precipitation strengthened alloy (Alloy 7818) after helium implantation (10 at. ppm) at high temperatures in order to clarify the effect of helium on mechanical properties and results were compared to those of SUS 316 stainless steel, a core component material of a presently operating fast breeder ...
YAMAMOTO, Norikazu, NAGAKAWA, Johsei, SHIRAISHI, Haruki, KAMITSUBO, Hiromichi, KOHNO, Isao, SHIKATA, Takashi   +5 more
openaire   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Exploring deformation localization via precipitate-free bands formed during low-cycle fatigue in a Cu–3.15 mass% Ti alloy

Materials & Design
Precipitation-strengthened Cu alloys undergo channelized cyclic deformation, but its microstructural nature and orientation dependence remain unclear. In this study, a near-peak-aged Cu–3.15 mass% Ti alloy is subjected to low-cycle fatigue (εp = 0.20%–1 ...
Junyi Chen, Kohei Ohno, Tomotaka Miyazawa, Tianchang Ma, Sukyoung Hwang, Toshiyuki Fujii   +5 more
doaj   +1 more source

Precipitation behavior of the G-phase strengthened 7Ni maraging steels

Journal of Materials Research and Technology, 2023
In this study, G-phase strengthened 7Ni maraging alloys were studied using a combination of thermodynamic prediction based on the TCFE-7 database and advanced experimental techniques, including micro-hardness testing, electron backscatter diffraction ...
Mujin Yang, Daobin Zhang, Zhifu Yao, Zhen Ma, Junhua Luan, Cuiping Wang, Bernd Kuhn, Zengbao Jiao, Yilu Zhao, Tao Yang, Xingjun Liu, Shuai Wang   +11 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Mapping stress heterogeneity in single-crystal superalloys by novel submicron-resolved X-ray diffraction

Materials Research Letters
Coherent precipitation, a common strengthening approach, is typically subjected to spatial non-uniformity due to microscopic segregation, leading to multi-scale stress heterogeneity.
Jiawei Kou, Kai Chen, Shaoqi Huang, Chongpu Zhai, Ching-Yu Chiang, Sisheng Wang, Zhijun Li, Yan-Dong Wang   +7 more
doaj   +1 more source

Effect of Process Control Agent on Microstructures and High-Temperature Oxidation Behavior of a Nickel-Based ODS Alloy

Metals, 2022
Two nickel-based oxide-dispersion-strengthened (ODS) alloys supplemented with different amounts of process control agent (PCA) were prepared. The microstructures including grains and nanometric oxides and the subsequent oxidation behavior of these ODS ...
Zhe Mao, Jing Li, Shi Liu, Liangyin Xiong   +3 more
doaj   +1 more source