Results 51 to 60 of about 35,428 (307)

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Fabrication and mechanical properties of gradient-structured W–Ni–Fe–Mo/Co tungsten heavy alloys

Fenmo yejin jishu
Gradient-structured tungsten heavy alloys with spatially graded mechanical properties can effectively resolve the strength-ductility trade-off in conventional homogeneous tungsten alloys. The high-strength 93W–Ni–Fe–Mo alloys and high-ductility 90W–Ni–Fe–
MENG Ziqi, DUAN Youteng, LIU Wensheng, MA Yunzhu, WU Tianhao, HAN Yifan, CAI Qingshan   +6 more
doaj   +1 more source

Powder metallurgy processed metal-matrix friction materials for space applications

Friction, 2017
Owing to the increasing demand for tribological brakes for space applications, the development of novel materials and advanced technologies is necessary.
Yelong Xiao, Pingping Yao, Kunyang Fan, Haibin Zhou, Minwen Deng, Zongxiang Jin   +5 more
doaj   +1 more source

POWDER-METALLURGY RESEARCH AT RIST AND POSTECH, KOREA

, 2018
In spite of a relatively short history, the powder metallurgy (P/M) program at RIST and POSTECH involves extensive research and development on powder processing technology including metal powder production on a pilot plant scale and the synthesis of new ...
KIM, NJ, AHN, S
core  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Sepiolite: A new component suitable for 380 ​km/h high-speed rail brake pads

Advanced Powder Materials
To enhance the high-temperature adaptability of copper-based composite materials and C–C/SiC discs, this article innovatively introduces a method of replacing graphite with sepiolite, resulting in the successful fabrication of samples with exceptional ...
Jiaqi Wu, Zhuan Li, Guoyuan Wen, Zonglong Gao, Ye Li, Yang Li, Peng Xiao   +6 more
doaj   +1 more source

Selective Laser Sintering of a Stainless Steel Powder [PDF]

, 2003
The research presented in this thesis was part of a larger collaborated project (LastForm Programme) to research engineering solutions for the rapid manufacture of large scale (0.5m – 5.0m in length) low, medium and high temperature tooling (from room ...
Hauser, Carl
core  

Micro parts manufacturing by powder metallurgy (Micro PM)

, 2022
6 S.Precision parts in powder metallurgy are manufactured by press and sinter operations followed by sizing. The advantage of net shape production is combined with dimensional precision and low surface roughness. However this technique is limited to very
Jurisch, M., Reuter, K., Riecker, S., Kieback, B., Dressler, M., Studnitzky, T.   +5 more
core  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source