Transactions of the Japan Welding Society最新文献

Effect of TiC-Cr3C2 Particles Content on Abrasive Wear Resistance of Co-Base Overlay Weld Alloy. TiC-Cr3C2颗粒含量对共基堆焊合金磨料耐磨性的影响

Transactions of the Japan Welding Society Pub Date : 1993-10-01 DOI: 10.2207/QJJWS.11.156

M. Nishida, T. Araki, H. Fujita

引用次数: 7

Study on Glass-metal Bonding by Anodic Bonding. 玻璃金属阳极键合的研究。

Transactions of the Japan Welding Society Pub Date : 1993-10-01 DOI: 10.2207/QJJWS.11.208

M. Toyoda, Y. Fujiya, M. Nayama, Tadashi Yamada

{"title":"Study on Glass-metal Bonding by Anodic Bonding.","authors":"M. Toyoda, Y. Fujiya, M. Nayama, Tadashi Yamada","doi":"10.2207/QJJWS.11.208","DOIUrl":"https://doi.org/10.2207/QJJWS.11.208","url":null,"abstract":"Anodic bonding of glass and Si, which is performed by applying positive voltage of several hundred volt on Si, is well known as Mallory sealing process and has been in use. However, anodic bonding of glass and metal has not been comprehensively investigated and mechanism of the bonding has not been well understood.A fundamental study on anodic bonding of borosilicate glass and metal was carried out. Glass to Mo bonding and glass to Al bonding were successfully made, and glass to 304ss, glass to Ti, glass to Ni and glass to Au bondings were also made but they fractured at low stress level. Bonding test of glass and Mo using the design of experiment was carried out in order to specify dominant bonding parameters. Then, it has become clear that the bonding temperature and the applying voltage should be dominant in the range of bonding temperature of 400°C-600°C, applying voltage of 0 V-350 V, bonding time of 5 min-60 min, bonding pressure of 0.03 MPa-0.7 MPa in Ar atmosphere or in vacuum. Microscopic observations and chemical analysis were performed for glass to Mo bonded structure. The reaction zone between glass and Mo was not identified from the results of SEM and EPMA. Result of ESCA analysis revealed that Na, which was not found around the boundary, was detected in glass near the anode and Mo oxide was detected in glass near the boundary. Basing on the results, it has been considered that metal ions would diffuse into glass substituting for Na' and metal oxide be formed, then glass to metal bonding should be achieved.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131122547","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: 5

Effects of Alloying Elements on the Toughness and Microstructure of HIGH CURRENT DENSITY GAS SHIELDED ARC PROCESS Weld Metals 合金元素对大电流密度气体保护电弧焊接金属韧性和显微组织的影响

Transactions of the Japan Welding Society Pub Date : 1993-10-01 DOI: 10.2207/QJJWS.11.29

S. Satonaka, K. Hari, Y. Matsumoto

{"title":"Effects of Alloying Elements on the Toughness and Microstructure of HIGH CURRENT DENSITY GAS SHIELDED ARC PROCESS Weld Metals","authors":"S. Satonaka, K. Hari, Y. Matsumoto","doi":"10.2207/QJJWS.11.29","DOIUrl":"https://doi.org/10.2207/QJJWS.11.29","url":null,"abstract":"Effects of thermal and physical properties of materials on the transient response of temperature to a step change in welding speed were investigated using TIG arc welding and FEM calculation of three-dimensional heat coduction. The materials used in this study were stainless steel, mild steel, aluminum alloy, brass and copper 9 mm in thickness.In TIG arc welding of low heat-conductive materials, large difference in maximum temperature appears in the period between former quasi-state and latter one. On the other hand, high heat-conductive materials indicate large difference in temperature gradient, but a little change in maximum temperature. In addition, the high heat-conductive materials require longer distance or time to be in latter quasi-state. The transient response from former to later quasi-state is characterized by the fraction of maximum temperature and temperature gradient to those at both quasi-states. These experimental results are confirmed by FEM calculations based on three-dimensional heat conduction. It is also clarified that although the maximum temperature mainly depend upon the thermal conductivity and thermal diffusivity, the transient response is dominated only on the thermal diffusivity. Therefore, the high thermal diffusive materials show slower response to a step change in welding speed.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"R-34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126541865","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: 5

Impact Property at Cryogenic Temperature of Candidate Materials for Fusion Reactor and Their Electron Beam Welded Joint 核聚变反应堆候选材料及其电子束焊接接头的低温冲击性能

Transactions of the Japan Welding Society Pub Date : 1991-12-01 DOI: 10.2207/QJJWS.9.23

S. Kaga, I. Fukuhara, Katsuhiro Fujii, K. Ogawa, T. Baba, Yoshiaki Yamamoto

{"title":"Impact Property at Cryogenic Temperature of Candidate Materials for Fusion Reactor and Their Electron Beam Welded Joint","authors":"S. Kaga, I. Fukuhara, Katsuhiro Fujii, K. Ogawa, T. Baba, Yoshiaki Yamamoto","doi":"10.2207/QJJWS.9.23","DOIUrl":"https://doi.org/10.2207/QJJWS.9.23","url":null,"abstract":"Impact properties at cryogenic temperature of candicate materials for fusion reactor and their electron beam welded joints are investigated by using instrumented Charpy impact testing apparatus. Material used are aluminum alloys (A7N01, A5083, A6061), JFMS (Japanese Ferritic Martensitic Steel) and two kinds of high manganese steels. Although JFMS is a steel for high temperature use, the impact test is conducted at low tenperature same as the cases of the other materials. Testing results are obtained as follows.1. Base metals and welded joints of aluminum alloys exhibit high absorbed energy at low temperature. Ductility of each base metal and welded joint gradually decreases with decreasing of testing temperature.2. Base metal and welded joint of JFMS exhibit an absorved energy transition temperature at near a room temperature.3. Base metal and welded joint of high manganese)steel A-T (18Mn) exhibit abrupt decreasing of absorbed energy at 77K, but base metal and welded joint of high manganese steel B-T (22Mn-0.2N) exhibit gradual increasing of maximum strength and decreasing of ductility with decreasing of testing temperature.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129017417","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: 1

Influence of Delta-ferrite on Sensitization of the Austenitic Stainless Steel Weld Metal δ -铁素体对奥氏体不锈钢焊缝金属敏化的影响

Transactions of the Japan Welding Society Pub Date : 1991-03-10 DOI: 10.2207/QJJWS.9.415

Y. Nakao, K. Nishimoto, M. Ishizaki

{"title":"Influence of Delta-ferrite on Sensitization of the Austenitic Stainless Steel Weld Metal","authors":"Y. Nakao, K. Nishimoto, M. Ishizaki","doi":"10.2207/QJJWS.9.415","DOIUrl":"https://doi.org/10.2207/QJJWS.9.415","url":null,"abstract":"Sensitization behavior of the delta-ferrite containing stainless steel weld metal was investigated using Type 304 and Type 308 alloys with the carbon content ranging from 0.04% to 0.09%, respective-ly. The weld metals heat treated at 923 K for times varying between 1 sec and 100 hr were tested for intergranular corrosion susceptibility in the acidified copper sulfate solution. The delta ferrite contain-ing weld metal with lower carbon content indicated rapidly healing of sensitization after the short heat treatment, whereas ones with higher carbon content than a critical value behaved as a fully austenitic steel regardless the existence of ferrite without showing the sign of rapid healing. SEM observation revealed that M23C6 precipitated preferentially at the ferrite-austenite boundary and also at the austenite-austenite boundaries although its amount at the latter boundaries was much less than the other in the both weld metals which indicated rapid healing of sensitization and behaved as a fully austenitic steel. A mathematical model is developed for the sensitization of the ferrite containing austenitic stainless steel weld metal. The degree of sensitization calculated using this model has shown a good agreement with the experimental corrosion test results. The calculation also demonstrated that for a given carbon content there exist the critical values for not only the total amount but the thickness of ferrite, above which the weld metal develop the rapid healing of sensitization.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114787729","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: 12

Newly developed micro-parallel seam joining equipment and its applications. Micro-parallel seam joining and development of joining equipment(4th Report). 新型微平行缝连接设备及其应用。微平行缝连接及连接设备的研制(第四次报告)。

Transactions of the Japan Welding Society Pub Date : 1989-11-05 DOI: 10.2207/QJJWS.7.425

Susumu Aono, K. Ohmori, Masaki Furuya, T. Takakura

引用次数: 2

The Nitrogen Absorption of Iron Weld Metal by Gas Tungsten Arc Welding 钨气弧焊对铁焊缝金属氮的吸收

Transactions of the Japan Welding Society Pub Date : 1986-04-01 DOI: 10.2207/QJJWS.1.392

T. Kuwana, H. Kokawa

{"title":"The Nitrogen Absorption of Iron Weld Metal by Gas Tungsten Arc Welding","authors":"T. Kuwana, H. Kokawa","doi":"10.2207/QJJWS.1.392","DOIUrl":"https://doi.org/10.2207/QJJWS.1.392","url":null,"abstract":"アーク溶接過程におけるガス・メタル反応を明らかにすることは,溶接工学上重要な課題である.著者らはこれまで消耗電極式アーク溶接(GMAW)における軟鋼および鉄合金溶接金属の窒素吸収に関して一連の研究を行い,溶接金属中の窒素の冶金物理化学的な挙動を明らかにしてきた.しかし消耗電極法を用いた場合には電極線と母材とが同時に溶融するため,諸現象を解析するに際して幾分複雑な面があることは否めない.例えば消耗電極法では,溶滴の形成および移行の過程ですでに窒素吸収反応が生じたり,電極線と母材の化学組成の差が窒素吸収に影響を与えることが考えられるからである. 本研究は,窒素吸収に関与する因子をできるだけ少なくし,より単純な状況下で溶接金属の窒素吸収挙動に関する基礎的.資料を得ることを目的としている.すなわち,タングステン電極による非消耗電極法を用い窒素および窒素を含む各種溶接雰囲気中で純鉄に近い化学組成の鉄をアーク溶接し,溶接金属の窒素吸収におよぼす溶接条件および雰囲気の影響などについて調べ,化学冶金学的な考察を行った.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124798192","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: 7

The Effect of the Nitrogen Absorption on the TEM Structure of SUS304L Austenitic Stainless Steel Weld Metal 氮吸收对SUS304L奥氏体不锈钢焊缝TEM组织的影响

Transactions of the Japan Welding Society Pub Date : 1986-04-01 DOI: 10.2207/qjjws.4.520

T. Kuwana, H. Kokawa, H. Tsujii

引用次数: 9

The Reheated Zone Toughness of Multipass Weld Metal (Report 1) : Comparison of Reheated Zone Toughness between Si-Mn System and High Strength Low Alloy System Weld Metals 多道焊缝金属的再热区韧性(报告1):Si-Mn体系与高强度低合金体系焊缝金属再热区韧性的比较

Transactions of the Japan Welding Society Pub Date : 1983-04-01 DOI: 10.2207/QJJWS1943.51.359

Y. Kikuta, T. Araki, M. Yoneda, H. Yoshida, T. Suga

{"title":"The Reheated Zone Toughness of Multipass Weld Metal (Report 1) : Comparison of Reheated Zone Toughness between Si-Mn System and High Strength Low Alloy System Weld Metals","authors":"Y. Kikuta, T. Araki, M. Yoneda, H. Yoshida, T. Suga","doi":"10.2207/QJJWS1943.51.359","DOIUrl":"https://doi.org/10.2207/QJJWS1943.51.359","url":null,"abstract":"The weld construction using heavy section steel and/or high strength low alloy steel is made by multipass welding. In that case, weld metal is reheated to various temperatures by welding heat of the subsequent pass. This result will lead to both microstructural change and through thickness toughness variation in weld metal.In this work, an investigation was carried out about the reheated zone toughness in weld metal.It is found by this work that, for simple Si-Mn system weld metal, the reheated zone toughness is improved as compared with as-welded touhgness, and increases with the ratio of reheated structure to aswelded structure. This improvement is caused by both the disappearance of columnar structure and the refinement of microstructure.While, for high strength low alloy system weld metal, the reheating shows the complex effect. The reheated zone toughness in this system deteriorates at peak temperature range between 750°C and 950°C, although the remarkable optical microstructural change is not observed.The reheating effect to the toughness of high strength low alloy system weld metal shows the inverse phenomenon as compared with that to the toughness of simple Si-Mn system weld metal.","PeriodicalId":273687,"journal":{"name":"Transactions of the Japan Welding Society","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122293296","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: 1

Kinetics of the Formation of Austenite at Constant Temperature : Study on the Phase Transformation in Welded Joints of Duplex Satinless Steels (Report 1) 奥氏体在恒温下形成的动力学——双相无锦缎钢焊接接头相变的研究(报告1)

Transactions of the Japan Welding Society Pub Date : 1982-10-01 DOI: 10.2207/QJJWS1943.50.514

Y. Nakao, K. Nishimoto, S. Inoue

引用次数: 11