Results 91 to 100 of about 10,467 (294)

Simulation of tempering drying of porous media based on COMSOL multi-physics field

Shipin yu jixie
ObjectiveTo investigate the variation laws of temperature and humidity fields during the tempering process.MethodsUsing corn kernels and grain piles as porous media, perform multi-physics field coupling using the heat and moisture flow interface in the ...
LIU Dingtong, LIU Zeyu, LIU Shaodong, FENG Tai   +3 more
doaj   +1 more source

On microstructure and performance of tempered high-boron high-speed steel roll [PDF]

China Foundry, 2012
Influences of the tempering temperature on the microstructure, mechanical property and wear resistance of High-Boron High Speed Steel (HBHSS) roll materials were investigated by means of optical microscopy, scanning electron microscopy (SEM), X-ray ...
Fu Hanguang, Du Zhongze, Li Ping
doaj  

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2009
High strength low-alloyed (HSLA) Cr-Mn-Si steels belong to a group of steels that can reach their full mechanical properties after quenching and tempering. Those properties depend both on the temperature and time of tempering.
A. Patarić, M. Mihailović, Z. Gulišija, Z. Janjušević   +3 more
doaj  

Simulation of hot stamping considering self-tempering [PDF]

MATEC Web of Conferences
The application of ultra-high-strength steel plates to automobile bodies has progressed to achieve weight reduction and collision safety, with expanding applications of hot stamping (HS) technology for components with tensile strengths of 1.5 GPa or more.
Mori Keitaro, Kubo Masahiro, Okamura Kazuo   +2 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of Tempering Temperature on Microstructure and Properties of ZG12Cr9Mo1Co1NiVNbNB Heat Resistant Steel

工程科学与技术, 2016
:The influence organizational performance of tempering temperature on CB2 heat resistant steel were studied by OM, SEM and other equipments. The results showed that，When keeping the quenching temperature (1100)，quenching time (1h) and tempering time(2h ...
zhouping, Yang xue, Sun Lan
doaj  

Influence of lowered austenitisation temperature during hardening on tempering resistance of modified H13 tool steel (Uddeholm Dievar) [PDF]

, 2013
The surface of large tools will be exposed to the hardening temperature for longer times than the core. This might in occasions, result in grain growth. In order to prevent this, it has become practice to lower the hardening temperature.
J. Andersson, Coll Ferrari, Maria Teresa,, Kvarnström, M., M. Kvarnström, Andersson, J., M. T. Coll. Ferrari   +5 more
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source