{"id":296,"date":"2019-04-28T19:36:17","date_gmt":"2019-04-28T10:36:17","guid":{"rendered":"http:\/\/ilab.imr.tohoku.ac.jp\/wp\/?page_id=296"},"modified":"2020-06-09T22:35:08","modified_gmt":"2020-06-09T13:35:08","slug":"%e5%90%88%e9%87%91%e3%81%ae%e7%9b%b8%e8%bb%a2%e7%a7%bb%e6%8c%99%e5%8b%95","status":"publish","type":"page","link":"https:\/\/ilab.imr.tohoku.ac.jp\/?page_id=296","title":{"rendered":"Transformations of bio\/structure materials"},"content":{"rendered":"

Phase transformation studies of structure materials and biomaterials towards their practical applications:<\/strong>
\nWe are investigating the transformation modes of Ti-alloys for biomaterials (omega transformation), Ni-based superalloys for power-plants\/aeroplanes blades (rafting phenomenon), etc.<\/p>\n

<\/p>\n

\u03b2\u578b\u30c1\u30bf\u30f3\u5408\u91d1\u306e\u03c9\u5909\u614b\u306e\u89e3\u660e\u3068\u7d44\u7e54\u5236\u5fa1<\/strong>
\n\u5408\u91d1\u306e\u76f8\u5909\u614b\u306b\u304a\u3044\u3066\uff0c\u307e\u3060\u89e3\u660e\u3055\u308c\u3066\u3044\u306a\u3044\u76f8\u5909\u614b\u304c\uff0c\u30c1\u30bf\u30f3\u306e\u03c9\u5909\u614b\u3067\u3059\uff0eDe Fontaine\u306b\u3088\u308a\u6982\u306d\u8ad6\u7406\u7684\u306b\u306f\u307e\u3068\u3081\u3089\u308c\u3066\u306f\u3044\u308b\u3082\u306e\u306e\uff0c\u307e\u3060\u5b8c\u5168\u306b\u305d\u306e\u8003\u3048\u65b9\u306b\u3088\u308a\u8aac\u660e\u3067\u304d\u306a\u3044\u73fe\u8c61\u3082\u591a\u3044\u306e\u304c\u73fe\u5b9f\u3067\u3059\uff0e\u6211\u3005\u306f\uff0c\u6700\u8fd1\u306e\u591a\u6839\u6b63\u548c\u6c0f\uff08\u962a\u5927\u7523\u7814\uff09\u3089\u306e\u8208\u5473\u6df1\u3044\u7814\u7a76\u306b\u57fa\u3065\u304d\uff0c\u5171\u540c\u3067\u03c9\u5909\u614b\u6319\u52d5\u306e\u89e3\u6790\u3068\u89e3\u660e\u3092\u76ee\u6307\u3057\u3066\u304a\u308a\u307e\u3059\uff0e\u307e\u305f\uff0c\u305d\u306e\u76f8\u5909\u614b\u6a5f\u69cb\u306e\u7406\u89e3\u306b\u3088\u308a\uff0c\u65b0\u305f\u306a\u529b\u5b66\u7269\u6027\u3092\u5f97\u308b\u305f\u3081\u306e\u5236\u5fa1\u6307\u91dd\u3092\u793a\u3057\u307e\u3059\uff0e<\/p>\n

About “Diffusionless isothermal omega transformation”
\n<\/i>Physical Review Materials 3<\/strong>, 043604 (2019)<\/a>
\n\"\"<\/p>\n

PRESS RELEASE:
\n<\/i>Discovered new phase transition mode in titanium alloys\/\u30c1\u30bf\u30f3\u5408\u91d1\u306e\u65b0\u305f\u306a\u76f8\u8ee2\u79fb\u6a5f\u69cb\u306e\u767a\u898b<\/a>
\n<\/i>\u6771\u5317\u5927<\/a>
\n<\/i>\u6771\u5317\u5927\u91d1\u7814<\/a><\/p>\n

\u69cb\u9020\u6750\u6599\u3092\u76ee\u6307\u3057\u305f\u5408\u91d1\u306e\u76f8\u5909\u614b<\/strong>
\n\u30cb\u30c3\u30b1\u30eb\u57fa\u5408\u91d1\u3084\u30c1\u30bf\u30f3\u5408\u91d1\u306e\u03c9\u5909\u614b\u306a\u3069\u306e\u57fa\u790e\u7684\u7406\u89e3\u306b\u57fa\u3065\u304f\u69cb\u9020\u6750\u6599\u958b\u767a\u306e\u6307\u91dd\u3092\u63d0\u793a\u3059\u308b\u7814\u7a76\u306b\u53d6\u308a\u7d44\u307f\u307e\u3059\uff0e<\/p>\n

\u25c6 Rafting\u73fe\u8c61\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u3064\u3044\u3066\u306e\u307e\u3068\u3081
\n\u30fbElastoplastic model for rafting \/ \u5f3e\u5851\u6027\u7684\u30e1\u30ab\u30cb\u30ba\u30e0<\/strong>
\n<\/i>Rafting Mechanism for Ni-Base Superalloy under External Stress: Elastic or Elastic-Plastic Phenomena?, T. Ichitsubo, D. Koumoto, M. Hirao, K. Tanaka, M. Osawa, T. Yokokawa, and H. Harada, Acta Materialia 51, 4033-4044 (2003).<\/a>
\n\u30fbViscoelastic model for rafting \/ \u7c98\u5f3e\u6027\u7684\u30e1\u30ab\u30cb\u30ba\u30e0<\/strong>
\n<\/i>Interpretation in elastic regime for rafting of Ni-base superalloy based on the external-stress-free dimensional change due to internal-stress equilibration, T. Ichitsubo, K. Tanaka, Acta Materialia 53, 4497-4504 (2005).<\/a><\/p>\n

\u5f8c\u8005\u306fNabarro\u5148\u751f\u306e\u63d0\u6848\u3057\u305f\u30e2\u30c7\u30eb\u306e\u7d50\u679c\u3068\u4e00\u81f4\u3057\u307e\u3059\uff0e\u5f3e\u6027\u7684\u306a\u3053\u3068\u306e\u307f\u3092\u8003\u616e\u3057\u307e\u3059\u304c\uff0c\u7d44\u7e54\u5f62\u6210\u306b\u4f34\u3046\u5f62\u72b6\u5909\u5f62\u3092\u8003\u616e\u3057\u306a\u3044\u3068\uff0c\u3053\u306e\u3053\u3068\u306f\u8d77\u3053\u308a\u307e\u305b\u3093\uff0e\u3042\u308b\u610f\u5473\uff0c\u77ac\u9593\u7684\u306a\u5f3e\u6027\u8ad6\u3092\u6271\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\uff0c\u5851\u6027\u5909\u5f62\u306f\u3057\u3066\u3044\u306a\u3044\u304c\uff0c\u6642\u3005\u523b\u3005\u3068\u7d44\u7e54\u304c\u5909\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u5f62\u72b6\u5909\u5316\u3092\u8003\u616e\u3057\u305f\u30e2\u30c7\u30eb\u3068\u306a\u308a\uff0c\u7c98\u5f3e\u6027\u7684\u89e3\u91c8\u3068\u3044\u3048\u307e\u3059\uff0e\u305d\u308c\u306b\u5bfe\u3057\uff0c\u524d\u8005\u306f\u5b9f\u969b\u306b\u6750\u6599\u5185\u90e8\u3067\u8d77\u3053\u3063\u3066\u3044\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u5f3e\u5851\u6027\u7684\u306a\u8003\u3048\u65b9\uff08eigen\u6b6a\u304c\u5851\u6027\u8ee2\u4f4d\u306b\u3088\u3063\u3066\u5909\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308a\uff0c\u81ea\u5df1\u7d44\u7e54\u5f62\u6210\u304c\u884c\u308f\u308c\u308b\u3068\u3044\u3046\u8003\u3048\u65b9\uff09\u3067\uff0c\u4ed6\u306e\u3044\u308d\u3044\u308d\u306a\u5b9f\u9a13\u3068\u6bd4\u8f03\u3057\u3066\u3082\u5408\u81f4\u3057\u3066\u304a\u308a\uff0c\u30ea\u30a2\u30ea\u30c6\u30a3\u304c\u3042\u308a\u307e\u3059\uff0e\u3053\u3053\u3067\u306f\u524d\u8005\u306e\u307f\u306e\u6982\u7565\u3092\u793a\u3057\u3066\u304a\u304d\u307e\u3059\uff0e<\/p>\n

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\u30de\u30a4\u30af\u30ed\u30e1\u30ab\u30cb\u30af\u30b9\u7406\u8ad6\uff1a\uff08\u62e1\u6563\u578b\u30fb\u7121\u62e1\u6563\u578b\u3092\u554f\u308f\u305a\uff09\u69cb\u9020\u76f8\u5909\u614b\u306e\u7d44\u7e54\u5f62\u6210\u306b\u975e\u5e38\u306b\u5f37\u529b\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u7406\u8ad6\uff0e\u65e5\u672c\u3067\u306f\uff0c\u6751\u5148\u751f\u304a\u3088\u3073\u68ee\u5148\u751f\u304c\u975e\u5e38\u306b\u5927\u304d\u306a\u8ca2\u732e\u3092\u679c\u305f\u3055\u308c\u305f\uff0e
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Fcc-L10\u578b\u5408\u91d1\u306e\u76f8\u5909\u614b\u3068\u5916\u5834\u304c\u7d44\u7e54\u5f62\u6210\u306b\u53ca\u307c\u3059\u52b9\u679c\u306e\u307e\u3068\u3081<\/strong>
\n\u25c6 \u95a2\u9023\u8ad6\u6587\u306e\u7d39\u4ecb
\n<\/i>Effect of external fields on ordering of FePd, K. Tanaka, T. Ichitsubo and M. Koiwa, Material Science and Engineering A 312, 118-127 (2001).<\/a>
\n<\/i>Kinetics of cubic to tetragonal transformation under external field by the time-dependent Ginzburg-Landau approach, T. Ichitsubo, K. Tanaka, M. Koiwa and Y. Yamazaki,Physical Review B 62, 5435-5441 (2000).<\/a><\/p>\n

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\n\u5f37\u78c1\u5834\u5370\u52a0\u5b9f\u9a13
\n\"\"
\nMonte calro\u8a08\u7b97\u30fbPhase-Field\u7d44\u7e54\u5f62\u6210\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3
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\n\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Phase transformation studies of structure materials and biomaterials towards their practical applications: We are investigating the transformation modes of Ti-alloys for biomaterials (omega transformation), Ni-based superalloys for power-plants\/aeroplanes blades (rafting phenomenon), etc.<\/p>\n","protected":false},"author":1,"featured_media":2226,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/296"}],"collection":[{"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=296"}],"version-history":[{"count":48,"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/296\/revisions"}],"predecessor-version":[{"id":1920,"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/296\/revisions\/1920"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=\/wp\/v2\/media\/2226"}],"wp:attachment":[{"href":"https:\/\/ilab.imr.tohoku.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}