The Role of Si in 17-4 PH Type Stainless Steel von Okamoto, Masazo

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On a PH Type Stainless Steel Containing High Nitrogen and High Silicon von Okamoto, Masazo, Naito, Takeshi

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On the Multiple Tempering of Low Tungsten High Speed Steels von Okamoto, Masazo, Nagakura, Mituru

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On the Relation between the Wear and the Matrix Structure of Nodular Graphite Cast Iron von OKAMOTO, Masazo, HASUI, Atsushi

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High Temperature Microscope Observation of the Austenite Grain Size of Steels von Okamoto, Masazo, Miyagawa, Ômi, Saga, Takurô

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OUTLINE OF THE SPHEROIDAL GRAPHITE CAST IRON von Okamoto, Masazo

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The Investigation of Alloys of the Copper-Nickel-Beryllium System. I: The Equiliber um Diagram of the Nickel-Rich Nickel-Beryllium System von Okamoto, Masazo

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The Phase Diagram of The Fe-Cr-N System von OKAMOTO, Masazo, NAITO, Takeshi

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On a PH Type Stainless Steel Bearing Both High Nitrogen and High Silicon von Okamoto, Masazo, Naito, Takeshi

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On some Behaviours of High Speed Steels Quenched into Hot Bath von Okamoto, Masazo, Nagakura, Mituru

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Research On Alumino Thermy (1st Report): Research on the phemomena of thermit reaction at high temperatures was made by using charges producing ferro-boron containing 6-15% B von Okamoto, Masazo, Yoda, Rempei

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Experimental research on carburizing. (1st. report) von Okamoto, Masazo, Ishii, Eiji

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On the Improvement of Various Properties of 20% Cr-Ni-Fe Alloys by Nitrogen-Absorption Treatment: On the function of nitrogen as an alloying element in heat-resisting materials-IX von OKAMOTO, Masazo, MIYAKAWA, Omi

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On the Improvement of Various Properties of 20% Cr-Mn-Fe Alloys by Nitrogen-Absorption Treatment: On the function of nitrogen as an alloying element in heat-resisting materials-X von MIYAKAWA, Omi, OKAMOTO, Masazo

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On the Nitrogen Absorption of High Cr-Fe Alloys with Various Chromium Contents in Nitrogen: On the functionof nitrogen as an alloying element in heat-resisting materials-VII von Miyakawa, Ohmi, Okamoto, Masazo

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On the High Temperature Nitrogen-Absorption of Nitrogen-Bearing 20% Cr-Fe Alloys in Pure Nitrogen: On the function of nitrogen as an alloying element in heat-resisting materials-VI von Okamoto, Masazo, Miyakawa, Ohmi

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Metallographic Study on Nitrogen Absorption of 20% Cr-Fe Alloys (Effect of Carbon Content): On the function of nitrogen as an alloying element in heat-resisting materials-IV von Okamoto, Masazo, Miyakawa, Ohmi

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Effect of Nitrogen on Ni-Cr Alloys: Nitrogen as an alloying element in heat-resisting materials-I von Okamoto, Masazo, Yoda, Renpei

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A Study on the Nitriding of Metallic Chromium von Miyagawa, Ômi, Okamoto, Masazo

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EFFECT OF RAW METALS AND MELTING METHOD ON Ni-Cr ALLOYS von Okamoto, Masazo, Yoda, Renpei

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