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INCONEL alloy 690 is an austenitic, solid-solution alloy with a high degree of metallurgical stability. The alloy has a low solubility for carbon, and its microstructure normally contains carbides. The major carbide present in the alloy is M23C6; the abundance of the phase varies with carbon content and thermal exposure of the material. Other phases normally present are titanium nitrides and carbonitrides. No embrittling intermetallic phases such as sigma phase have been identified in alloy 690. http://www.pccenergygroup.com/PDFs/Inconel%20alloy%20690.pdf ¸ÃºÏ½ðÊǹÌÈÜÌ壬ÒòΪËùÄÜÈÝÄɵÄCÓÐÏÞ£¬ËùÒÔ×éÖ¯ÖлáÓÐ̼»¯Îï¡£Ö÷ҪΪM23C6, ¸ù¾Ýº¬Ì¼Á¿»òÕßÈȱ©Â¶µÄʱ¼ä²»Í¬£¬¸ÃÏຬÁ¿Óб仯¡£ÆäËû¿ÉÄÜ´æÔÚµÄÏà¾ÍÊÇîѵª»¯ºÏÎ»òÕßÊÇ̼µª»¯ºÏÎï¡£¸ÃºÏ½ðûÓдàÐÔÏà¡£ Ҫȷ¶¨Ïà×é³ÉµÄ»°£¬¿ÉÒÔ×öɨÃèµç¾µ£¬±³É¢Éäµç×Óģʽ£¬»ùÓڳɷֱ仯¿ÉÒÔ·Ö±æ³öÕâЩÎö³öÏà¡£´ò³É·Ý¾Í¿ÉÒÔ¹À¼ÆÏà×é³É¡£Èç¹ûÒªÖªµÀ¾§Ìå½á¹¹£¬¿ÉÒÔ´óÁ¿ÝÍÈ¡³öÎö³öÏ࣬ÓÃÕâЩ·ÛÄ©×öXÉäÏßʵÑé¡£ |
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