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Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation
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| Zeitschriftentitel: | Materials Science Forum |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Materials Science Forum, 706-709, 2012, S. 3010-3015 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Trans Tech Publications, Ltd.
|
| Schlagwörter: |
| author_facet |
Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi |
|---|---|
| author |
Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi |
| spellingShingle |
Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi Materials Science Forum Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| author_sort |
saida, kazuyoshi |
| spelling |
Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi 1662-9752 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.3010 <jats:p>A new bonding technique of titanium and zirconium conducted at low temperatures was developed utilizing the hydrogen-induced transformation. Hydrogen charge treatment of the faying surfaces of titanium and zirconium was conducted with varying the charging time between 3.6-700ks prior to diffusion bonding. Diffusion bonding of hydrogen-charged titanium and zirconium was carried out at 600-800°C for 0.6-1.8ks applying the bonding pressure of 5-10MPa in vacuum. Titanium and zirconium hydrides were formed at faying surfaces after hydrogen charge treatment. The β-transus temperature at faying surfaces of titanium and zirconium was reduced to approx. 450-550°C with hydrogen-charging. The bond layer was phase transformed to a bcc structure (β) at the bonding temperature due to the hydrogen diffusion during bonding process. Grain growth across the prior bond interface was observed in the joints bonded at 750-800°C after hydrogen-charging for 300-500ks. Tensile strength of titanium joints bonded at 800°C attained approx. 70% of the base metal strength (approx. 1.6 times as high as non-charged joints), and corrosion resistance of the joints was comparable to that of the base metal. Furthermore, tensile strength of zirconium joints bonded at 800°C was approx. 1.7 times as high as non-charged joints. It follows that the solid-state bondability of titanium and zirconium at low temperatures was improved compared to the conventional diffusion bonding (direct bonding without hydrogen-charging).</jats:p> Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation Materials Science Forum |
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DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 DE-Bn3 DE-Brt1 DE-D161 |
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Trans Tech Publications, Ltd., 2012 |
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Trans Tech Publications, Ltd., 2012 |
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| title |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_unstemmed |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_full |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_fullStr |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_full_unstemmed |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_short |
Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_sort |
development of low temperature bonding technique of titanium and zirconium using hydrogen diffusion-induced phase transformation |
| topic |
Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science |
| url |
http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.3010 |
| publishDate |
2012 |
| physical |
3010-3015 |
| description |
<jats:p>A new bonding technique of titanium and zirconium conducted at low temperatures was developed utilizing the hydrogen-induced transformation. Hydrogen charge treatment of the faying surfaces of titanium and zirconium was conducted with varying the charging time between 3.6-700ks prior to diffusion bonding. Diffusion bonding of hydrogen-charged titanium and zirconium was carried out at 600-800°C for 0.6-1.8ks applying the bonding pressure of 5-10MPa in vacuum. Titanium and zirconium hydrides were formed at faying surfaces after hydrogen charge treatment. The β-transus temperature at faying surfaces of titanium and zirconium was reduced to approx. 450-550°C with hydrogen-charging. The bond layer was phase transformed to a bcc structure (β) at the bonding temperature due to the hydrogen diffusion during bonding process. Grain growth across the prior bond interface was observed in the joints bonded at 750-800°C after hydrogen-charging for 300-500ks. Tensile strength of titanium joints bonded at 800°C attained approx. 70% of the base metal strength (approx. 1.6 times as high as non-charged joints), and corrosion resistance of the joints was comparable to that of the base metal. Furthermore, tensile strength of zirconium joints bonded at 800°C was approx. 1.7 times as high as non-charged joints. It follows that the solid-state bondability of titanium and zirconium at low temperatures was improved compared to the conventional diffusion bonding (direct bonding without hydrogen-charging).</jats:p> |
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| author | Saida, Kazuyoshi, Ogiwara, Hiroyuki, Nishimoto, Kazutoshi |
| author_facet | Saida, Kazuyoshi, Ogiwara, Hiroyuki, Nishimoto, Kazutoshi, Saida, Kazuyoshi, Ogiwara, Hiroyuki, Nishimoto, Kazutoshi |
| author_sort | saida, kazuyoshi |
| container_start_page | 3010 |
| container_title | Materials Science Forum |
| container_volume | 706-709 |
| description | <jats:p>A new bonding technique of titanium and zirconium conducted at low temperatures was developed utilizing the hydrogen-induced transformation. Hydrogen charge treatment of the faying surfaces of titanium and zirconium was conducted with varying the charging time between 3.6-700ks prior to diffusion bonding. Diffusion bonding of hydrogen-charged titanium and zirconium was carried out at 600-800°C for 0.6-1.8ks applying the bonding pressure of 5-10MPa in vacuum. Titanium and zirconium hydrides were formed at faying surfaces after hydrogen charge treatment. The β-transus temperature at faying surfaces of titanium and zirconium was reduced to approx. 450-550°C with hydrogen-charging. The bond layer was phase transformed to a bcc structure (β) at the bonding temperature due to the hydrogen diffusion during bonding process. Grain growth across the prior bond interface was observed in the joints bonded at 750-800°C after hydrogen-charging for 300-500ks. Tensile strength of titanium joints bonded at 800°C attained approx. 70% of the base metal strength (approx. 1.6 times as high as non-charged joints), and corrosion resistance of the joints was comparable to that of the base metal. Furthermore, tensile strength of zirconium joints bonded at 800°C was approx. 1.7 times as high as non-charged joints. It follows that the solid-state bondability of titanium and zirconium at low temperatures was improved compared to the conventional diffusion bonding (direct bonding without hydrogen-charging).</jats:p> |
| doi_str_mv | 10.4028/www.scientific.net/msf.706-709.3010 |
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| imprint | Trans Tech Publications, Ltd., 2012 |
| imprint_str_mv | Trans Tech Publications, Ltd., 2012 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161 |
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| physical | 3010-3015 |
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| series | Materials Science Forum |
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| spelling | Saida, Kazuyoshi Ogiwara, Hiroyuki Nishimoto, Kazutoshi 1662-9752 Trans Tech Publications, Ltd. Mechanical Engineering Mechanics of Materials Condensed Matter Physics General Materials Science http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.3010 <jats:p>A new bonding technique of titanium and zirconium conducted at low temperatures was developed utilizing the hydrogen-induced transformation. Hydrogen charge treatment of the faying surfaces of titanium and zirconium was conducted with varying the charging time between 3.6-700ks prior to diffusion bonding. Diffusion bonding of hydrogen-charged titanium and zirconium was carried out at 600-800°C for 0.6-1.8ks applying the bonding pressure of 5-10MPa in vacuum. Titanium and zirconium hydrides were formed at faying surfaces after hydrogen charge treatment. The β-transus temperature at faying surfaces of titanium and zirconium was reduced to approx. 450-550°C with hydrogen-charging. The bond layer was phase transformed to a bcc structure (β) at the bonding temperature due to the hydrogen diffusion during bonding process. Grain growth across the prior bond interface was observed in the joints bonded at 750-800°C after hydrogen-charging for 300-500ks. Tensile strength of titanium joints bonded at 800°C attained approx. 70% of the base metal strength (approx. 1.6 times as high as non-charged joints), and corrosion resistance of the joints was comparable to that of the base metal. Furthermore, tensile strength of zirconium joints bonded at 800°C was approx. 1.7 times as high as non-charged joints. It follows that the solid-state bondability of titanium and zirconium at low temperatures was improved compared to the conventional diffusion bonding (direct bonding without hydrogen-charging).</jats:p> Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation Materials Science Forum |
| spellingShingle | Saida, Kazuyoshi, Ogiwara, Hiroyuki, Nishimoto, Kazutoshi, Materials Science Forum, Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation, Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| title | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_full | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_fullStr | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_full_unstemmed | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_short | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| title_sort | development of low temperature bonding technique of titanium and zirconium using hydrogen diffusion-induced phase transformation |
| title_unstemmed | Development of Low Temperature Bonding Technique of Titanium and Zirconium Using Hydrogen Diffusion-Induced Phase Transformation |
| topic | Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science |
| url | http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.3010 |