Results 91 to 100 of about 1,610,142 (307)

From Simplicity to Complexity: Substituent‐Controlled Z′ Multiplicity as a Design Principle for Thermally Robust Yet Programmable Anisotropic Expansion

Small, EarlyView.
Leveraging substituent‐controlled packing competition in 2,6‐bis(4‐tert‐butylphenyl)anthracene, we developed a high‐Z′ symmetry‐amplification strategy that controls crystallographic inequivalence. This strategy enables reversible, thermally robust phase transitions and programmable anisotropic thermal expansion within a single molecular crystal ...
Yuto Hino, Takumi Matsuo, Tomohiro Yamashita, Hiroko Yokota, Daiki Korenaga, Tomohiro Seki, Shotaro Hayashi   +6 more
wiley   +1 more source

In situ EDXRD measurement of the low transformation temperature effect in laser beam welded stainless steel

Journal of Advanced Joining Processes
This paper investigates the low-transformation-temperature (LTT) effect in austenitic high alloy stainless steel and its influence on strain evolution of laser beam welded specimen.
F Akyel, M Gamerdinger, K Mäde, K.R.Krishna Murthy, S. Olschok, R. Sharma, U. Reisgen, G. Abreu-Faria, G. Dovzhenko   +8 more
doaj   +1 more source

Influence of Doping Tb on the Mechanical Properties and Martensitic Transformation of Ni-Mn-Sn Magnetic Shape Memory Alloys

Crystals, 2018
Brittleness and low working temperature are two key factors that restrict the application of Ni-Mn-Sn alloys. Element doping is an effective means to improve performance of materials.
Xiaohua Tian, Kun Zhang, Changlong Tan, Erjun Guo   +3 more
doaj   +1 more source

MARTENSITIC TRANSFORMATION AND ELASTIC CONSTANTS

, 1985
The deformation energy barrier for the martensitic transformation is estimated from the data of the elastic constants. The deformation energy barrier for B.C.C → F.C.C martensitic transformation is, at most, of the order of the thermal energy at room ...
T. SUZUKI
core   +1 more source

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Martensitic transformation in nanostructured Fe-Ni alloys

, 2003
In Fe-Ni thin films prepared by magnetron sputtering at room temperature, the bcc structure can exist stably in a larger range of Ni-content than that in Fe-Ni equilibrium diagram.
Y. Rong, Q. Meng, T.Y. Hsu (Xu Zuyao)
core   +1 more source

Deformation and Fracture of Thin Sheets of Nitinol [PDF]

, 2007
Nickel-Titanium (Nitinol) is a Shape Memory Alloy (SMA) that exhibits superelasticity (pseudoelasticity) and shape memory by a solid-solid state diffusion-less phase transformation.
Daly, Samantha Hayes
core   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

Effect of Composition on Martensitic Transformation Temperature, Latent Heat, and Crystalline Phase of Cu-Al-Mn Shape Memory Alloys

Advances in Materials Science and Engineering
Cu-Al-Mn alloys are promising materials for industrial applications because of their excellent workability and low transformation stress. In this work, Cu-Al-Mn alloys with compositions in the range of 64.8–78.23 at% Cu, 12.2–31.6 at% Al, and 0–17.87 at%
Kotaro Tomioka, Ryota Nakano, Akihisa Aimi, Takuro Dazai, Ichiro Takeuchi, Kenjiro Fujimoto   +5 more
doaj   +1 more source