Results 41 to 50 of about 2,090 (211)

Directional solidification of superalloys [PDF]

, 1990
This invention relates to the directional solidification of superalloys, in particular nickel-based superalloys, by imposition of a predetermined temperature profile in the solidification front and, depending on the desired results, a predetermined rate ...
Alter, Wendy Sue, Hamilton, William David, Schmidt, Deborah Diane   +2 more
core   +1 more source

Partial-solution rejuvenation heat treatment of directionally solidified DSM11 superalloy

Cailiao gongcheng
In view of the microstructure damage and property degradation of directionally solidified DSM11 service turbine blades， it is urgent to study the partial-solution rejuvenation heat treatment.
ZHOU Qiang, HUA Xiaoyu, HUANG Chunrong, ZHENG Weiwei   +3 more
doaj   +1 more source

The linear-elastic Theory of Critical Distances to estimate high-cycle fatigue strength of notched metallic materials at elevated temperatures [PDF]

, 2015
This paper investigates the accuracy of the linear-elastic Theory of Critical Distances (TCD) in estimating high-cycle fatigue streng th of notched metallic materials experienc- ing elevated temperatures during in-service operations.
Akiniwa, Berto, Berto, Chen, Christ, Coffin, Domas, Dowling, El Haddad, Filippini, Hasebe, Hertzberg, Hurley, Inoue, Jones, Kawagoishi, Lazzarin, Lazzarin, Lazzarin, Leidermark, Leidermark, Louks, Manson, Miller, Miller, Neuber, Nozaki, Peterson, Ponter, Sheppard, Shi, Sonsino, Spindel, Susmel, Susmel, Susmel, Susmel, Susmel, Susmel, Susmel, Susmel, Susmel, Susmel, Tanaka, Taylor, Taylor, Taylor, Viswanathan, Whittaker, Yang   +49 more
core   +1 more source

A Mini Review on Evolution of High‐Entropy Alloy Design: From Experimental Approaches to Machine Learning Integration

Rare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT High‐entropy alloys (HEAs) have emerged as a transformative class of materials distinguished by their complex chemical compositions, unique microstructures, and remarkable mechanical and functional properties. Traditionally, the discovery and optimization of HEAs have relied on conventional methods, including trial‐and‐error experimentation ...
Chrispin Ouko Zamzu, Zhe Jia, Baolong Shen   +2 more
wiley   +1 more source

Numerical investigations of freckles in directionally solidified nickel-based superalloy casting with abrupt contraction in cross section

Results in Physics, 2019
Evolution of grain structure and formation of freckle defects were simulated in directionally solidified nickel-based superalloy casting with abrupt contraction in cross-section area.
Qing Ya Sun, Ying Ren, Dong-Rong Liu
doaj   +1 more source

Processing, Microstructures and Mechanical Properties of a Ni-Based Single Crystal Superalloy

Crystals, 2020
A second-generation Ni-based superalloy has been directionally solidified by using a Bridgman method, and the key processing steps have been investigated with a focus on their effects on microstructure evolution and mechanical properties.
Qingqing Ding, Hongbin Bei, Xinbao Zhao, Yanfei Gao, Ze Zhang   +4 more
doaj   +1 more source

Quantitative mapping of service process-microstructural degradation-property deterioration for a Ni-based superalloy based on chord length distribution imaging process

Materials & Design, 2021
Directionally solidified (DS) and single crystal (SC) Ni-based superalloys inevitably underwent microstructural degradation induced by the harsh operating environment.
Y.S. Fan, X.G. Yang, D.Q. Shi, L. Tan, W.Q. Huang   +4 more
doaj   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, Volume 27, Issue 24, December 2025.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

On the Deformation Behavior of Metastable CrMnNi Steels Processed by Directed Energy Deposition in Different Temperature Regimes

Advanced Engineering Materials, Volume 27, Issue 24, December 2025.
In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter, Thomas Wegener, Florian Stredak, Gert Bartzsch, Steffen Scherbring, Javad Mola, Olena Volkova, Stefan Böhm, Thomas Niendorf   +8 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