Results 211 to 220 of about 5,508 (264)

Effect of multilayer laser cladding on the microstructure and wear resistance of SiC/Ni60A coatings. [PDF]

Sci Rep
Wang Z, Qi C, Wang K.
europepmc   +1 more source

Magnetic Properties and Corrosion Resistance of Sintered Nd-Fe-B Magnet Caused by Er₆₉Fe₃₁ Alloy Grain Boundary Addition. [PDF]

Materials (Basel)
Dai Y, Wang K, Xiang J, Yao Q, Lu Z, Wang J.   +5 more
europepmc   +1 more source

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Microstructure Evolution of the as Tempered P92 Steel at High Temperature Exposure

Materials Science Forum, 2020
The microstructure evolution during aging at high temperatures is usually used to thermodynamically simulate those cases of aging at low temperatures but for a very long time for P92 steel, because high temperature can accelerate the microstructure process.
Yang Xu, Tao Lei, Xi Sheng Yang, Che Chang, Lin Feng Qian, Qian Gong   +5 more
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Effect of Alloying Elements on the High-Temperature Tempering of Fe-0.3N Martensite

Acta Materialia, 2021
Abstract The precipitation behaviors of alloy nitrides during the high-temperature tempering of Fe-0.3mass%N-1mass%M (M: Cr, Mo, Mn, or Si) martensite obtained by gaseous nitriding and quenching was investigated. Resistance to temper softening was observed with the addition of Mn, Cr, and Mo and secondary hardening occurred in the Cr and Mo alloys at
Shao-Wen Young, Mitsutaka Sato, Kazuhiro Yamamitsu, Yusuke Shimada, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara   +6 more
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High‐Temperature Effects on Photosynthetic Processes in Temperate and Tropical Cereals

Crop Science, 1999
High temperature limits productivity of crops in many regions of the world, but the physiological basis of tolerance to the stress is not known. Our objective was to determine the relationship between photosynthetic responses to high temperature at the whole‐plant level and sensitivity of light reactions, the most labile systems, to brief heat ...
Kassim Al‐Khatib, Gary M. Paulsen
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Structure of chromium-nickel steel 14KH17N2 after high-temperature tempering

Metal Science and Heat Treatment, 1995
The structure of steel 14Kh17N2 after quenching exhibits α-phase (ferrite alloyed with chromium and nickel), which causes the formation of streaks, filaments, and other defects in the metal during rolling and hot pressure treatment. The properties of the microstructure of this steel can be judged by the state of the carbide phase segregating on phase ...
V. I. Psarev, A. F. Kulikov
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Strengthening mechanisms influenced by silicon content in high temperature tempered martensite and bainite

Materials Science and Engineering: A, 2020
Abstract Strengthening mechanisms influenced by silicon (Si) content during tempering of martensite and bainite between 500 and 650 °C were investigated. Microstructural features such as dislocation density, subgrain size, cementite size, and microalloy precipitate volume fraction and size were evaluated in low and high Si alloys heat treated to form
Jonah Klemm-Toole, Julian Benz, Igor Vieira, Amy J. Clarke, Steven W. Thompson, Kip O. Findley   +5 more
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High-temperature tempering of steel 20Kh2N4A after deep carburizing

Metal Science and Heat Treatment, 1981
1. Single tempering at 580–600\dg is sufficient for complete decomposition of retained austenite in steel 20Kh2N4A with a carbon concentration in the case of 0.8% or less or with cooling after carburizing at 30\dg or lower. Incomplete cooling from the carburizing temperature and a carbon content of the case larger than 0.8% require double ...
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Microstructure and high-temperature strength of high Cr ODS tempered martensitic steels

Journal of Nuclear Materials, 2013
Abstract 11-12Cr oxide dispersion strengthened (ODS) tempered martensitic steels underwent manufacturing tests and their ferritic–martensitic duplex structures were quantitatively evaluated by three methods: high-temperature X-ray diffraction (XRD), electron probe microanalyzer (EPMA), and metallography.
S. Ohtsuka, T. Kaito, T. Tanno, Y. Yano, S. Koyama, K. Tanaka   +5 more
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