Ni4Ti3-precipitation during aging of NiTi shape memory alloys and its influence on martensitic phase transformations

Jafar Khalil-Allafia Antonin Dlouhyb GuntherEggeleraa Institut für Werkstoffe, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44 780 Bochum, Germanyb Institute of Physics of Materials, AS CR, Zizkova 22, CZ-616 62 Brno, Czech Republic Received 22 March 2002, Revised 7 June 2002, Accepted 10 June 2002, Available online 19 September 2002. Abstract The present work studies the microstructure of

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Urmia Lake

  Green and tan shades show the extent of the water in Lake Urmia (also Orumiyeh or Orumieh) in western Iran. The lake is highly saline and only a few tens of meters deep even at high water. The shoreline appears as a white margin of salt. The lake is one of the largest in the Middle

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Urmia City

Urmia or Orumiyeh ( ارومیه‎,   Azerbaijani: اورمیه Armenian: Ուրմիա, Romanized: Urmia; Kurdish: ,ورمێ‎ Ûrmiyê,, Syriac: ܐܘܪܡܝܐ‎, is the largest city in West Azarbaijan Province of Iran. It is situated at an altitude of 1,330 metres (4,360 ft) above sea level, and is located along the Shahar Chay River on the Urmia plain. Lake Urmia, one of the world’s largest salt lakes, lies to the east of the city, and the mountainous Turkish border area

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