Results 51 to 60 of about 2,118 (231)

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

Exceptional creep resistance of a directionally solidified superalloy: temperature-dependent evolution of microstructure and dislocations

Materials Research Letters
This study systematically analyzed the microstructure, grain boundary, and dislocation evolution of a novel directionally solidified superalloy with excellent creep resistance under different conditions and the alloy outperformed first-generation single ...
Yunpeng Fan, Xinbao Zhao, Yu Zhou, Yuan Cheng, Shuli Zeng, Quanzhao Yue, Wanshun Xia, Yuefeng Gu, Ze Zhang   +8 more
doaj   +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  

MXene‐Based Materials Contribute Better Alkali Metal–Chalcogen Batteries: Progress, Challenges, and Perspectives

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Alkali metal–chalcogen batteries (AMCBs) are one of the most promising next‐generation energy storage systems because of their high energy density and reasonably low cost. However, the practical application of AMCBs is severely hindered by the volume expansion of the chalcogen cathode, the shuttle effect of polychalcogenides, and unstable ...
Yong Liu, Yingjie Miao, Fei Wang, Jingyang Wang, Yize Wu, Zhongxiu Liu, Yifei Pei, Jiangzhuo Ren, Xiaobin Sun, Cheng Zhang, Yue Wang, Kunming Pan   +11 more
wiley   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 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

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

Application‐Grade TiAl Single Crystal With Excellent Room‐Temperature Plasticity and Strength Prepared by Seeded Electromagnetic Confinement Directional Solidification

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang, Jun Shen, Xiao‐Yu Gao, Shao‐Kai Zheng, Xiao‐Hua Lu, Cong Zhao, Xu‐Dong Wang, Jia‐Jun Zhao, Jia‐Xin Li, Xiao‐An Yue   +9 more
wiley   +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

Velocity‐Iterative Directional Annealing Enables Ultra‐Elongated Columnar Grains and Exceptional Ductility in TiAl Alloys

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu, Jieren Yang, Chuan Rong, Na Jin, Ying Liu, Hongze Fang, Ruirun Chen   +6 more
wiley   +1 more source