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Your search keyword '"Takeshi Hiromoto"' showing total 15 results
Start Over Author "Takeshi Hiromoto" Topic physical and theoretical chemistry
15 results on '"Takeshi Hiromoto"'

2. Solidification Microstructure of Ingots and Continuously Cast Slabs Treated with Rare Earth Metal

Author

Yoshio Nuri, Tetsuro Ohashi, Osamu Kitamura, and Takeshi Hiromoto

Subjects
Equiaxed crystals, Materials science, Rare earth, Metallurgy, Metals and Alloys, General Engineering, Nucleation, Condensed Matter Physics, Microstructure, Metal, Dendrite (crystal), visual_art, Materials Chemistry, visual_art.visual_art_medium, Solidification microstructure, Physical and Theoretical Chemistry, Ingot
Abstract

Investigation has been made to evaluate the effect of REM addition on the solidification macrostructure of commercial ingots and continuously cast slabs. The results are as follows:(1) REM addition brings about diminution of macro-segregation, enlargement of equiaxed zone, and reduction of loose structure.(2) Also, the starting position of the formation of the inverse V-segregation moves toward the center of ingot and the segregated area expands. The length of segregation line and the segregation ratio are reduced.(3) Autoradiographic observation does not show large differences in macrosolidification rate. However, mushy zone at the bottom of an ingot is formed earlier.(4) REM-oxides, sulphides, and oxysulphides are mainly precipitated in dendrite arms. The constituents of inclusions are varied depending on the methods of REM addition.Non-metallic inclusions formed by REM addition seem to act as nucleation catalyst and thus improve not only the microstructure but also the macrostructure of the casts.

Published
1982
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6. Development and Application of Oxygen Sensors to Steelmaking Operations

Author

Tokuzou Nisugi, Yoshihiro Igaki, Takeshi Hiromoto, Katuhiko Ishikura, and Tsuyoshi Saeki

Subjects
Materials science, business.industry, Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics, business, Process engineering, Oxygen sensor, Manufacturing engineering, Steelmaking
Published
1977
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8. [Untitled]

Author

Akira ADACHI, Nobuya IWAMOTO, Shoji SHIJIMA, Yoshihiro SAITO, Iku UCHIYAMA, Tetsuya SAITO, Masae SUMITA, Kazuteru SENDA, Yasushi KOJIMA, Kokichi SANO, Takaji KUSAKAWA, Yasuo WATANABE, Hisashi MORI, Midori MATSUO, Yoshikuni NAWATA, Kiyohito TANIZAWA, Minoru YAMATE, Kazuo MIYAKAWA, Etuo NOMURA, Mikihumi KATAGAMI, Ryoji ARIMA, Kozo MORINAGA, SUSUMU SATO, Takeshi HIROMOTO, Hideo ITO, Hiroshi HIROTANI, Hiroshi HORIGUCHI, Yukiyoshi ITOH, Keinosuke TSUJI, Masayuki KINUGASA, Yasumasa WADA, and Daisaku YAMAMOTO

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1965
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9. [Untitled]

Author

Akira ADACHI, Nobuya IWAMOTO, Shoji SHIJIMA, Yoshihiro SAITO, Iku UCHIYAMA, Tetsuya SAITO, Masae SUMITA, Kazuteru SENDA, Yasushi KOJIMA, Kokichi SANO, Takaji KUSAKAWA, Yasuo WATANABE, Hisashi MORI, Midori MATSUO, Yoshikuni NAWATA, Kiyohito TANIZAWA, Minoru YAMATE, Kazuo MIYAKAWA, Etuo NOMURA, Mikihumi KATAGAMI, Ryoji ARIMA, Kozo MORINAGA, SUSUMU SATO, Takeshi HIROMOTO, Hideo ITO, Hiroshi HIROTANI, Hiroshi HORIGUCHI, Yukiyoshi ITOH, Keinosuke TSUJI, Masayuki KINUGASA, Yasumasa WADA, and Daisaku YAMAMOTO

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1965
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10. [Untitled]

Author

Kazutomo KITAGAWA, Susumu SATO, Takeshi HIROMOTO, Mikio TAUMI, Hideo ITOH, Takuji KAKUTANI, Shigeaki MARUHASHI, Yoji KITAMURA, Naokiko MIZUNO, Masuta OKUBO, Akira MASUI, Kazuteru SENDA, Koki GUNJI, Hisami TOKUNAGA, Mutsumi IHIDA, Teruaki ISHII, Shoji TSUCHIDA, Akira ADACHI, Nobuya IWAMOTO, Shoji SHIZIMA, Riichiro KUSAKA, Minoru SASAKI, Hiroki HAMADA, Iku UCHIYAMA, and Masae SUMITA

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1964
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11. [Untitled]

Author

Kazutomo KITAGAWA, Susumu SATO, Takeshi HIROMOTO, Mikio TAUMI, Hideo ITOH, Takuji KAKUTANI, Shigeaki MARUHASHI, Yoji KITAMURA, Naokiko MIZUNO, Masuta OKUBO, Akira MASUI, Kazuteru SENDA, Koki GUNJI, Hisami TOKUNAGA, Mutsumi IHIDA, Teruaki ISHII, Shoji TSUCHIDA, Akira ADACHI, Nobuya IWAMOTO, Shoji SHIZIMA, Riichiro KUSAKA, Minoru SASAKI, Hiroki HAMADA, Iku UCHIYAMA, and Masae SUMITA

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1964
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12. [Untitled]

Author

Akira ADACHI, Nobuya IWAMOTO, Shoji SHIJIMA, Yoshihiro SAITO, Iku UCHIYAMA, Tetsuya SAITO, Masae SUMITA, Kazuteru SENDA, Yasushi KOJIMA, Kokichi SANO, Takaji KUSAKAWA, Yasuo WATANABE, Hisashi MORI, Midori MATSUO, Yoshikuni NAWATA, Kiyohito TANIZAWA, Minoru YAMATE, Kazuo MIYAKAWA, Etuo NOMURA, Mikihumi KATAGAMI, Ryoji ARIMA, Kozo MORINAGA, SUSUMU SATO, Takeshi HIROMOTO, Hideo ITO, Hiroshi HIROTANI, Hiroshi HORIGUCHI, Yukiyoshi ITOH, Keinosuke TSUJI, Masayuki KINUGASA, Yasumasa WADA, and Daisaku YAMAMOTO

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1965
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13. [Untitled]

Author

Kazutomo KITAGAWA, Susumu SATO, Takeshi HIROMOTO, Mikio TAUMI, Hideo ITOH, Takuji KAKUTANI, Shigeaki MARUHASHI, Yoji KITAMURA, Naokiko MIZUNO, Masuta OKUBO, Akira MASUI, Kazuteru SENDA, Koki GUNJI, Hisami TOKUNAGA, Mutsumi IHIDA, Teruaki ISHII, Shoji TSUCHIDA, Akira ADACHI, Nobuya IWAMOTO, Shoji SHIZIMA, Riichiro KUSAKA, Minoru SASAKI, Hiroki HAMADA, Iku UCHIYAMA, and Masae SUMITA

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1964
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14. [Untitled]

Author

Akira ADACHI, Nobuya IWAMOTO, Shoji SHIJIMA, Yoshihiro SAITO, Iku UCHIYAMA, Tetsuya SAITO, Masae SUMITA, Kazuteru SENDA, Yasushi KOJIMA, Kokichi SANO, Takaji KUSAKAWA, Yasuo WATANABE, Hisashi MORI, Midori MATSUO, Yoshikuni NAWATA, Kiyohito TANIZAWA, Minoru YAMATE, Kazuo MIYAKAWA, Etuo NOMURA, Mikihumi KATAGAMI, Ryoji ARIMA, Kozo MORINAGA, SUSUMU SATO, Takeshi HIROMOTO, Hideo ITO, Hiroshi HIROTANI, Hiroshi HORIGUCHI, Yukiyoshi ITOH, Keinosuke TSUJI, Masayuki KINUGASA, Yasumasa WADA, and Daisaku YAMAMOTO

Subjects
Materials Chemistry, Metals and Alloys, Physical and Theoretical Chemistry, Condensed Matter Physics
Published
1965
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