Results 71 to 80 of about 25,614 (293)

Scanning electron microscopy and atom probe tomography characterization of laser powder bed fusion precipitation strengthening nickel-based superalloy

, 2023
Atom probe tomography (APT) was utilized to supplement scanning electron microscopy (SEM) characterization of a precipitation strengthening nickel-based superalloy, Alloy 247LC, processed by laser powder bed fusion (L-PBF).
Brodin, Håkan,, Deirmina, Faraz,, Håkan Brodin, Harlin, P., Kumara, Chamara, Pederson, Robert, Thuvander, Mattias,, Olutayo Adegoke, Faraz Deirmina, Robert Pederson, Chamara Kumara, Deirmina, Faraz, Adegoke, Olutayo, Peter Harlin, Mattias Thuvander, Andersson, Joel Håkan,, Thuvander, Mattias, Andersson, Joel H\ue5kan, Pederson, Robert,, Joel Andersson, Kumara, Chamara,, Brodin, H\ue5kan, Adegoke, Olutayo,, Harlin, P.,   +23 more
core   +1 more source

Al-Mg-Zn(-Cu) Cross-Over Alloys: The New Frontier in High-Strength and Radiation-Resistant Lightweight Materials

Compounds
Over the past few years, researchers have developed the alloy Al-Mg-Zn(-Cu), a new aluminum alloy based on the technique of ‘crossover alloying’. The main strengthening phase of this novel alloy is T-Mg32(Al, X)49(X is Zn and Cu) after ageing and ...
Alessandra Ceci, Girolamo Costanza, Maria Elisa Tata   +2 more
doaj   +1 more source

Precipitation behavior of Ti-microalloyed high-strength steel by CSP process

工程科学学报, 2015
Optical microscopy, electron microscopy and physic-chemical phase analysis, in combination with thermodynamic calculations, were used to study precipitates and their precipitation regularity in Ti-microalloyed high-strength steel produced by CSP process.
TIAN Xing, ZHU Guo-ming, KANG Yong-lin, ZHANG Yong-kun, TAN Jia-mei   +4 more
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Strengthening mechanisms in a new precipitation hardening stainless steel fabricated by laser powder bed fusion

, 2022
Strengthening mechanisms in a new precipitation hardening stainless steel fabricated by laser powder bed ...
C Aranas (13346604), K Chadha (13346595), Thomas Dorin (13067616), J Spray (13346601), Lu Jiang (13081647), Y Tian (8473476)   +5 more
core  

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Strength modelling of Al-Cu-Mg Type alloys

, 2006
Age hardening of Al-Cu-Mg type alloys occurs in two stages separated by a constant hardness plateau when the alloys are aged at 110°C to 240?C after solution treatment and quenching.
Yan, Jialin
core  

Precipitation strengthening mechanism of Nb-Ti-Al alloys

, 2012
Solid solution and precipitation strengthened Nb-Ti-Al alloys, was prepared in the present paper. It was found that by adding a few of carbon, heat treatment and aging treatment, uniform fine second phase particles formed.
Wang, Donghui, Li, Zhongkui, Yu, Jiliang, Cai, Xiaomei, Zheng, Xin, Bai, Run, Wang, Feng   +6 more
core   +1 more source

The Effect of Aging on the Microstructure, Precipitation Response, and Fatigue Behaviour in an Al-Li-Cu Alloy

Engineering Transactions, 2005
The interrelationships between precipitate characteristics and mechanical properties of an Al-Li-Cu alloy was quantified. The microstructure, precipitation response, and fatigue crack growth rates in the Al-Li-Cu alloy AF/C458 were studied following ...
J. Fragomeni, R. Wheeler, K. V. Jata
doaj   +1 more source

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