Results 21 to 30 of about 46,215 (264)

Research status and prospect of Co-phase strengthening in cemented carbide

Cailiao gongcheng
WC-Co cemented carbide has applied in various fields due to its excellent properties. However， the defects of Co bonding phase in hard alloys， such as low hardness， low wear resistance， and poor high-temperature stability， limit their use.
LIAO Yu, ZHANG Qianwei, HU Qiming
doaj   +1 more source

INFLUENCE OF THE CAST IRON’S CHEMICAL COMPOSITION ON THE INTERPHASE DISTRIBUTION OF MN

Nauka ta progres transportu, 2016
Purpose. This paper focuses on obtaining the dependencies of the manganese content in the metallic base (Mno) and its interphase distribution coefficient (KPMn) on the cast iron’s chemical composition in the system Fe–C–Cr – Ni –Mn. Methodology. The cast
V. V. Netrebko, I. P. Volchok
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

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Machine learning-assisted design of strong and ductile BCC high-entropy alloys

Materials Research Letters
Machine learning-based feature importance analysis was utilized to systematically identify the critical material parameters and elemental effects governing the yield strength of BCC high-entropy alloys (HEAs). We found that the shear modulus mismatch and
Ling Shen, Yongkang Li, Weidong Zhang, Shikun Zhang, Shihua Ma, Fei Peng, Zhenggang Wu   +6 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Effect of different maturation methods on silver banana quality / Efeito de diferentes métodos de maturação sobre a qualidade da banana prata

Diversitas Journal, 2019
The marketable banana fruit is climatic and therefore has a short maturation period, which means shorter shelf life. Properly stored storage becomes of great value so that such transformations do not harm the commercialization of fruit.
Karla Rayana de Oliveira Silva, Rafaele Cabral Barbosa, Wallysson Wagner Vilela Santos, Julyana Braga de Oliveira, Jenifer Sthephanie Araújo da Silva, Erika Valente de Medeiros   +5 more
doaj   +1 more source

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

Prediction of segregation, short-range order, and plasticity in nickel based polycrystals: insights from an uncertainty aware machine learning potential

Materials & Design
Trace phosphorus segregation at grain boundaries (GBs) offers a promising yet insufficiently quantified route to strengthen multicomponent nickel-based superalloy (NBS), where segregation, chemical short-range order (CSRO), and plasticity are ...
Shihui Ning, Dingwang Yuan, Wangyu Hu, Bowen Huang   +3 more
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