Search Results - "Hamada, A. S."

Fatigue behavior of high-Mn TWIP steels by Hamada, A.S., Karjalainen, L.P., Puustinen, J.

“…Fatigue behavior of three high-Mn TWIP steels with the grain sizes between 4.5 and 55 μm were investigated in reversed plane bending in the high-cycle regime…”
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Hot ductility behaviour of high-Mn TWIP steels by Hamada, A.S., Karjalainen, L.P.

“…▶ The hot ductility of TWIP steels is enhanced through dynamic recrystallization. ▶ Al levels need to be strictly controlled and moderate levels 1.5wt.% are…”
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The influence of aluminum on hot deformation behavior and tensile properties of high-Mn TWIP steels by Hamada, A.S., Karjalainen, L.P., Somani, M.C.

“…The influence of aluminum (0–3 wt.%) on the high-temperature flow stress and recrystallization kinetics of two austenitic 25 wt.% Mn-bearing TWIP steels were…”
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The effect of preparation conditions of chalcone based benzoxazine/magnetite nanocomposites on magnetization properties by Mandour, Hamada S. A., Rehab, Ahmed, Elnahrawy, Mohamed, Salahuddin, Nehal

“…In the current study, a hydroxylated chalcone (1-phenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one, 4-aminobenzoic acid, and paraformaldehyde were combined in…”
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Inter‐ and Intramolecular Cyclopropanations of Diazo Weinreb Amides Catalyzed by Ruthenium(II)‐Amm‐Pheox by Mandour, Hamada S. A., Chanthamath, Soda, Shibatomi, Kazutaka, Iwasa, Seiji

“…Inter‐ and intramolecular cyclopropanations of a series of diazo Weinreb amides and trans‐allylic diazo Weinreb amide derivatives have been achieved using…”
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High-cycle fatigue behavior of ultrafine-grained austenitic stainless and TWIP steels by Hamada, A.S., Karjalainen, L.P.

“…High-cycle fatigue behavior of ultrafine-grained (UFG) 17Cr–7Ni Type 301LN austenitic stainless and high-Mn Fe–22Mn–0.6C TWIP steels were investigated in a…”
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Reusable and highly enantioselective water-soluble Ru(II)- Amm -Pheox catalyst for intramolecular cyclopropanation of diazo compounds by Mandour, Hamada S A, Nakagawa, Yoko, Tone, Masaya, Inoue, Hayato, Otog, Nansalmaa, Fujisawa, Ikuhide, Chanthamath, Soda, Iwasa, Seiji

“…A reusable and highly enantioselective catalyst for the intramolecular cyclopropanation of various diazo ester and Weinreb amide derivatives was developed. The…”
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Synthesis, characterization and application of chitosan conjugated heterocyclic compounds by El-Gharably, Atif A., Kenawy, El-Refaie S., Safaan, Ahmed A., Aboamna, Saad A., Mahmoud, Yehia A.-G., Mandour, Hamada S. A.

“…Derivatives of formyl pyrazole were synthesized by the reaction of acetophenone, 4-methyl acetophenone, 3-acetyl furan, 3-acetyl thiophen and phenyl hydrazine…”
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Novel Hydrazone Chromophore Sensor for Metallochromic Determination of Cadmium Ions by El-Nagar, Islam, Youssef, Ahmed M, Abd El-Hakim, A. A, Kenawy, El-Refaie, Mandour, Hamada S. A, Khattab, Tawfik A

“…For the detection of Cd(II) in aquatic media, a novel dicyanomethylene dihydrofuran hydrazone(DCDHFH)-based colorimetric chemosensor was developed. DCDHFH was…”
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Non-destructive determination of the yield strength and flow properties of high-manganese twinning-induced plasticity steel by Hamada, A.S., Haggag, F.M., Porter, D.A.

“…The applicability of the automated ball indentation (ABI) technique for non-destructively determining the yield strength and flow properties of a…”
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Electrochemical corrosion behaviour of a novel submicron-grained austenitic stainless steel in an acidic NaCl solution by Hamada, A.S., Karjalainen, L.P., Somani, M.C.

“…Novel microstructures consisting of various fractions of tempered martensite, retained austenite and submicron-grained austenite were processed in an AISI…”
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Fatigue behavior of ultrafine-grained and coarse-grained Cr–Ni austenitic stainless steels by Hamada, A.S., Karjalainen, L.P., Surya, P.K.C. Venkata, Misra, R.D.K.

“…► Fatigue resistance of ultrafine-grained 301LN is highly increased by grain refinement. ► Fatigue mechanism differs distinctly from that of coarse-grained…”
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A Stacking Fault Energy Perspective into the Uniaxial Tensile Deformation Behavior and Microstructure of a Cr-Mn Austenitic Steel by Barman, H., Hamada, A. S., Sahu, T., Mahato, B., Talonen, J., Shee, S. K., Sahu, P., Porter, D. A., Karjalainen, L. P.

“…A Cr-Mn austenitic steel was tensile strained in the temperature range 273 K (0 °C) ≤ T ≤ 473 K (200 °C), to improve the understanding on the role of stacking…”
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Fatigue Behavior of Four High-Mn Twinning Induced Plasticity Effect Steels by Hamada, A.S., Karjalainen, L.P., Ferraiuolo, A., Gil Sevillano, J., de las Cuevas, F., Pratolongo, G., Reis, M.

“…Fatigue behavior of four high-Mn (18 to 22 wt pct Mn) steels, after cold rolling and soft annealing, were investigated in reversed plane bending in a…”
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Effects of reversion and recrystallization on microstructure and mechanical properties of Nb-alloyed low-Ni high-Mn austenitic stainless steels by Kisko, A., Hamada, A.S., Talonen, J., Porter, D., Karjalainen, L.P.

“…The influence of reversion annealing on the microstructure and mechanical properties of an austenitic high-Mn low-Ni 15Cr–9Mn–1.1Ni–1.7Cu stainless steel with…”
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Martensitic Transformation During Cold Rolling Deformation of an Austenitic Fe-26Mn-0.14C Alloy by Sahu, P., Hamada, A. S., Sahu, T., Puustinen, J., Oittinen, T., Karjalainen, L. P.

“…A high-Mn austenitic steel was deformed in cold rolling to study the martensitic transformation and microstructure using X-ray diffraction and electron…”
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The utility of transarterial embolization and computed tomography for life-threatening spontaneous retroperitoneal hemorrhage by Tani, Ryuichiro, Sofue, Keitaro, Sugimoto, Koji, Katayama, Naoto, Hamada, Mostafa A. S., Maruyama, Koji, Horinouchi, Hiroki, Gentsu, Tomoyuki, Sasaki, Koji, Ueshima, Eisuke, Koide, Yutaka, Okada, Takuya, Yamaguchi, Masato, Murakami, Takamichi

“…Purpose To assess the safety and efficacy of transarterial embolization (TAE) and to evaluate the utility of contrast-enhanced computed tomography (CE-CT) for…”
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Synthesis, characterization, antimicrobial, molecular docking simulation, and antitumor assays of nanometric complexes based on new thiazole Schiff base derivative by Khedr, Abdalla M., El‐Ghamry, Hoda A., Wahdan, Khalid M., Mandour, Hamada S. A.

“…For further pharmaceutical applications, a novel Schiff base derivative of aminothiazole and its Co (II), Cu (II), Zn (II), and Th (IV) chelates were designed…”
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X-ray diffraction study on cooling-rate-induced γfcc → εhcp martensitic transformation in cast-homogenized Fe-26Mn-0.14C austenitic steel by SAHU, P, HAMADA, A. S, GHOSH, R. N, KARJALAINEN, L. P

“…The thermal stability of a cast homogenized austenitic steel with basic composition Fe-26Mn-0.14C has been studied using the Rietveld entire X-ray diffraction…”
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Contribution of deformation mechanisms to strength and ductility in two Cr–Mn grade austenitic stainless steels by Hamada, A.S., Karjalainen, L.P., Misra, R.D.K., Talonen, J.

“…The role of different deformation mechanisms in controlling mechanical properties were studied in two low-Ni, Cr–Mn austenitic stainless steel grades (Types…”
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