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Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy最新文献

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Helium Behavior in Vanadium-Based Alloys Irradiated in the Dynamic Helium Charging Experiments 动态氦充注实验中辐照钒基合金中的氦行为
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1996-12-31 DOI: 10.2172/554899
K. Fukumoto, J. Gazda, H. Matsui
{"title":"Helium Behavior in Vanadium-Based Alloys Irradiated in the Dynamic Helium Charging Experiments","authors":"K. Fukumoto, J. Gazda, H. Matsui","doi":"10.2172/554899","DOIUrl":"https://doi.org/10.2172/554899","url":null,"abstract":"Helium effect of neutron irradiated vanadium alloys, containing titanium, has been studied using Dynamic Helium Charging Experiment (DHCE) in FFTF. Cavity formation was observed only in pure vanadium irradiated at 430 to 600 C and in V-5Ti irradiated at 600 C. No apparent cavity formation was obtained in V-3Ti-1Si and V-4Cr-4Ti. The precipitation of titanium oxide in V-5Ti, V-3Ti-1Si and V-4Cr-4Ti occurred in all irradiation conditions in this study and the precipitates of Ti{sub 5}Si{sub 3} only appeared in V-3Ti-1Si irradiated at 600 C up to 15 dpa with helium generation rate of 4 appmHe/dpa. It is suggested that titanium oxide plays an important role for suppression of cavity formation and swelling from early stage of irradiation. Detail characterization of precipitates and He effect for neutron damages in vanadium alloys are discussed here.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"11 1","pages":"149-155"},"PeriodicalIF":0.0,"publicationDate":"1996-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79287214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
CAM Analysis of Dimensionality Crossover 维度交叉的CAM分析
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1994-07-15 DOI: 10.1142/9789812797087_0025
H. Kitatani, T. Kakiuchi, N. Ito, Masuo Suzuki
{"title":"CAM Analysis of Dimensionality Crossover","authors":"H. Kitatani, T. Kakiuchi, N. Ito, Masuo Suzuki","doi":"10.1142/9789812797087_0025","DOIUrl":"https://doi.org/10.1142/9789812797087_0025","url":null,"abstract":"Layered square-lattice ferromagnetic Ising models (∞×∞× n lattices) are studied by the Monte Carlo simulation for n =3 to 7. The results show the dimensionality crossover from the two-dimensional square lattice Ising model to the three-dimensional simple cubic Ising model. Furthermore, the CAM analysis is performed to evaluate the critical exponent γ of the three-dimensional simple cubic ferromagnetic Ising model, which shows that γ =1.21(4). The present analysis is also applicable to the study of the phase transition of quantum spin systems.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"132 4 1","pages":"283-286"},"PeriodicalIF":0.0,"publicationDate":"1994-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79617968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Study on A3 Transformation of Dispersion- Strengthened Iron 弥散强化铁的A3相变研究
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1990-01-01 DOI: 10.1007/978-94-009-0741-6_20
Y. Imai, T. Miyazaki
{"title":"Study on A3 Transformation of Dispersion- Strengthened Iron","authors":"Y. Imai, T. Miyazaki","doi":"10.1007/978-94-009-0741-6_20","DOIUrl":"https://doi.org/10.1007/978-94-009-0741-6_20","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"4 1","pages":"343-353"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80502717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Hydrostatic Tensile Stress on Fracture in Some Structural Alloys 静水压拉应力对某些结构合金断裂的影响
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1983-01-01 DOI: 10.1016/B978-1-4832-8440-8.50134-4
Muneaki Shimura, S. Saito
{"title":"The Effect of Hydrostatic Tensile Stress on Fracture in Some Structural Alloys","authors":"Muneaki Shimura, S. Saito","doi":"10.1016/B978-1-4832-8440-8.50134-4","DOIUrl":"https://doi.org/10.1016/B978-1-4832-8440-8.50134-4","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"14 1","pages":"201-215"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83489057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
On the Twist Effect of V-H Alloys Associated with the Precipitation of Hydrides 氢化物析出对V-H合金扭转效应的影响
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1981-10-01 DOI: 10.1051/JPHYSCOL:19815137
O. Yoshinari, M. Koiwa
{"title":"On the Twist Effect of V-H Alloys Associated with the Precipitation of Hydrides","authors":"O. Yoshinari, M. Koiwa","doi":"10.1051/JPHYSCOL:19815137","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:19815137","url":null,"abstract":"A vanadium wire containing hydrogen begins to twist by itself, when cooled, at the onset of hydride precipitation. The magnitude of the twist is greatly increased, if the specimen is plastically deformed in torsion prior to observations. The effect of the elastic stress is systematically studied by observing the zero point drift on cooling and heating under the applied torque; both the precipitation and the dissolution processes are found to be affected by the external stress. Hydrides in vanadium is known to precipitate in the form of platelets along particular crystallographic planes. The twist effect can be interpreted as the preferential precipitation (dissolution) of one type of platelets over others under the effect of external or internal stresses.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"40 1","pages":"117-122"},"PeriodicalIF":0.0,"publicationDate":"1981-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86508119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Grain Boundary Fracture of α Brass Bicrystals at an Intermediate Temperature Range α黄铜双晶在中温范围内的晶界断裂
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1979-12-05 DOI: 10.2320/JINSTMET1952.42.11_1096
H. Yamagata, O. Izumi
{"title":"Grain Boundary Fracture of α Brass Bicrystals at an Intermediate Temperature Range","authors":"H. Yamagata, O. Izumi","doi":"10.2320/JINSTMET1952.42.11_1096","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.42.11_1096","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"39 1","pages":"141-142"},"PeriodicalIF":0.0,"publicationDate":"1979-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85048242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The Structure of Oxygen-Adsorbed Copper Surfaces Expressed as an "Oxygen Pressure-Temperature Diagram" 用“氧压力-温度图”表示的铜表面氧吸附结构
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1979-12-05 DOI: 10.2320/jinstmet1952.42.7_682
Y. Fujinaga
{"title":"The Structure of Oxygen-Adsorbed Copper Surfaces Expressed as an \"Oxygen Pressure-Temperature Diagram\"","authors":"Y. Fujinaga","doi":"10.2320/jinstmet1952.42.7_682","DOIUrl":"https://doi.org/10.2320/jinstmet1952.42.7_682","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"8 1","pages":"141"},"PeriodicalIF":0.0,"publicationDate":"1979-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84163565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the Embrittlement and Toughness of High-Purity Fe-30Cr-2Mo Alloy 高纯Fe-30Cr-2Mo合金的脆化和韧性研究
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1979-12-05 DOI: 10.1520/STP38203S
S. Saito, H. Tokuno, Muneaki Shimura, E. Tanaka, Yasuzi Kataura, T. Ototani
{"title":"On the Embrittlement and Toughness of High-Purity Fe-30Cr-2Mo Alloy","authors":"S. Saito, H. Tokuno, Muneaki Shimura, E. Tanaka, Yasuzi Kataura, T. Ototani","doi":"10.1520/STP38203S","DOIUrl":"https://doi.org/10.1520/STP38203S","url":null,"abstract":"Experiments were conducted to explain unexpected embrittlement phenomena encountered in fabricating a high-purity Fe-30Cr-2Mo alloy. By means of a hydrostatic tension test with a Bridgman-type specimen it was found that the fracture behavior of the alloy is highly dependent on stress state. Under conditions of low triaxial stress, the alloy displays excellent ductility. Under conditions of high triaxial stress, however, it shows less strain to fracture and a transition from ductile to cleavage fracture. The toughness of the Fe-30Cr-2Mo alloy can be significantly improved by thermomechanical processing.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"11 1","pages":"25-40"},"PeriodicalIF":0.0,"publicationDate":"1979-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83230204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Strain Hardening and Recovery in High-Temperature Deformation by Pure-Metal Mode 纯金属模式高温变形下的应变硬化与恢复
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1979-12-05 DOI: 10.2320/JINSTMET1952.42.4_432
S. Sakurai, K. Abe, H. Yoshinaga, S. Morozumi
{"title":"Strain Hardening and Recovery in High-Temperature Deformation by Pure-Metal Mode","authors":"S. Sakurai, K. Abe, H. Yoshinaga, S. Morozumi","doi":"10.2320/JINSTMET1952.42.4_432","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.42.4_432","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"10 1","pages":"141-141"},"PeriodicalIF":0.0,"publicationDate":"1979-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75525217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
A Test of Modified Indium Seal of a Window at Liquid Helium Temperature(Physics) 液氦温度下改良铟窗密封试验(物理)
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1977-12-25 DOI: 10.2221/JCSJ.12.243
K. Noto, P.E.P. Stohr
{"title":"A Test of Modified Indium Seal of a Window at Liquid Helium Temperature(Physics)","authors":"K. Noto, P.E.P. Stohr","doi":"10.2221/JCSJ.12.243","DOIUrl":"https://doi.org/10.2221/JCSJ.12.243","url":null,"abstract":"A modified version of an indium seal with a very small loss area, in which pure In solder is used instead of pure In wire, has been tried for a glass window of 20mm in diameter. It has turned out that this seal is vacuum tight against the liquid helium at 4.2K.A seal of a 10mmφ sapphire window with STYCAST 2, 850GT was also successfully tested at 4.2K.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"46 1","pages":"75"},"PeriodicalIF":0.0,"publicationDate":"1977-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74052963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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