Results 61 to 70 of about 621 (208)

Cluster‐Mediated Solute Stabilization and Shear‐Bypass Synergistic Strengthening in High‐Alloyed Systems

Advanced Science, Volume 13, Issue 25, 4 May 2026.
This study demonstrates that in high‐alloy systems, nanoclusters with high solute tolerance can effectively suppress compositional segregation. This mitigation leads to a concurrent 18.7% increase in strength and 41.5% improvement in ductility, which is attributed to a shear‐bypass synergistic strengthening mechanism. The findings provide a new pathway
Wei Yu, Yu Bai, Jiawen Li, Kaixi Jiang, Hai Hao, Tao Jiang, Shunan Zhang, Yong Li, Zhaodong Wang, Kai Zhao, Shiwei Li   +10 more
wiley   +1 more source

Microstructural evolution of directionally solidified DZ125 superalloy castings with different solidification methods [PDF]

China Foundry, 2013
The properties of Ni-base superalloy castings are closely related to the uniformity of their as-cast microstructure, and different solidification methods have serious effect on microstructural uniformity.
Ge Bingming, Liu Lin, Zhang Jun
doaj  

High temperature tensile deformation of a directionally solidified nickel base superalloy: Role of micro constituents

, 2017
High temperature tensile deformation behaviour of directionally solidified nickel base superalloy CM 247 DS was studied by conducting tensile tests in the temperature range 25–955 °C and extensive electron microscopic examinations to understand the ...
P.S.M. Jena, Fernando, C D, S.K. Das, N. Paulose, Das, Swapan K, Paulose, N, Rai, R K, Sahu, J K, R.K. Rai, C.D. Fernando, Jena, P S M, J.K. Sahu   +11 more
core   +1 more source

Deformation‐Induced Formation of Stray Grains in Additive Manufacturing of Single Crystals

Advanced Science, Volume 13, Issue 25, 4 May 2026.
Stray grain formation severely limits the additive manufacturing of single‐crystal alloys. By integrating in situ synchrotron techniques, ex situ characterization, and multi‐scale multi‐physics modeling, the authors reveal that stray grains originate from dislocations at the solid‐liquid interface, rather than thermal supercooling in conventional ...
Dongsheng Zhang, Zixu Guo, Yuxiao Li, Lu Wang, Yu Wu, Darui Sun, Wentao Yan, Yuanyuan Guo, Han Wang, Wei Liu, Ye Tao, Bingbing Zhang   +11 more
wiley   +1 more source

Effect of HIP Combined with RHT Process on Creep Damage of DZ125 Superalloy

Cailiao gongcheng, 2017
Four different processes of hot isostatic pressing (HIP) combined with rejuvenation heat treatments (RHT) were adopted to reveal the microstructural evolution of creep damaged DZ125 specimens, finally the mechanical properties were evaluated.The results ...
WANG Tian-you, WANG Xiao-meng, ZHAO Zi-hua, ZHANG Zheng   +3 more
doaj   +1 more source

Influences of Cooling Conditions on the Liquation Cracking in Laser Metal Deposition of a Directionally Solidified Superalloy

Metals, 2020
Directionally solidified (DS) nickel-based superalloys are widely used in manufacturing turbine blades, which may fail due to wear and/or material loss during service.
Baohua Chang, Shuo Yang, Guan Liu, Wangnan Li, Dong Du, Ninshu Ma   +5 more
doaj   +1 more source

Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC‐DS

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1794-1808, May 2026.
ABSTRACT Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70‐mm‐thick compact‐type specimens of alloy 247LC‐DS, a Ni‐base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force.
Zachary B. Towner, Santosh B. Narasimhachary, Phillip W. Gravett, Richard W. Neu, Christopher L. Muhlstein, Ashok Saxena   +5 more
wiley   +1 more source

Influence of Crystal Orientation on the Freckle Formation in Directionally Solidified Superalloys [PDF]

Advanced Materials Research, 2011
Freckle occurrence is known to be dependent on the casting size and the superalloy components with large cross section are more prone to freckle formation. In our directional solidification experiment of superalloys freckles are observed in some thin samples, while some significantly thicker samples in the same shell mould cluster remain freckle free ...
De Xin Ma, Michael Mathes, Bin Zhou, Andreas Bührig-Polaczek   +3 more
openaire   +1 more source

Microstructural evolution of V‐Ti‐B based high‐temperature alloys during surface conditioning by means of laser beam melting Entwicklung der Gefüge von V‐Ti‐B‐Hochtemperatur‐Legierungen während der Oberflächenmodifikation mittels selektivem Laserstrahlschmelzen

Materialwissenschaft und Werkstofftechnik, Volume 57, Issue 4, Page 272-285, April 2026.
This study explores laser beam melting (LBM) on V‐Ti‐B alloys for high‐temperature applications. By applying two laser power levels, researchers analyzed microstructural evolution via scanning electron microscopy and energy dispersive spectroscopy. Hardness tests revealed surface conditioning increases of 5 % ‐ 33 %.
M. Carrion Saldaña, W. Yang, G. Hasemann, H.‐J. Christ, R. Schwaiger, M. Krüger, B. Gorr, A. von Hehl   +7 more
wiley   +1 more source

Effects of P on microstructures and properties of directionally solidified superalloy DZ125

Journal of Aeronautical Materials
The directionally solidified superalloy DZ125 is widely used as turbine blades in aero-engines. This work investigates the influence of phosphorus（P）on the microstructure，mechanical properties and crack susceptibility of DZ125 alloy. The results indicate
SONG Jinxia, JIANG Chihang, KANG Yongwang, XIAO Chengbo, JIANG Liwu, LI Ming, DAI Shenglong   +6 more
doaj   +1 more source