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ÀÛ¼ºÀÏ : 14-11-18 14:44
ºÎ½Ä°ú °í¿Â°ü¸®(CORROSION AND HIGH TEMPERATURE CONTROL)
 ±Û¾´ÀÌ : ¿î¿µÀÚ
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CORROSION AND HIGH TEMPERATURE CONTROL  

                                        2012-02-13 22:02:17, Á¶È¸ : 471, Ãßõ : 29

###¾Æ·¡ ³»¿ëÀº ASM International¿¡¼­ ¹ßÇàÇÑ Ã¥ "Material Selections for

Corrosion Control"ÀÇ ÀϺκРÇÑ±Û ¹ø¿ªÀÔ´Ï´Ù. ¿À·ù¿¡ ´ëÇؼ­´Â Ã¥ÀÓÁöÁö

¾Ê½À´Ï´Ù.±â¼úÀûÀ¸·Î ºÒÈ®½ÇÇÑ ºÎºÐÀÌ ÀÖÀ¸¸é Ÿ ±â¼ú¼­ÀûÀ» Âü°íÇϽÅÈÄ

ÆÇ´ÜÇϽñ⠹ٶø´Ï´Ù.###


CORROSION CONTROL

1.CORROSIONÀ̶õ?

ÁÖº¯È¯°æ¿¡ÀÇÇÑ È­ÇÐÀûÀÎ ±Ý¼ÓºÎ½Ä, ÁÖº¯¿Âµµ¿¡¼­ÀÇ Ã¶Àdzì, °í¿Â¿¡¼­ÀÇ

öÀÇ ½ºÄÉÀϸµ, ÁÖ¹°ÀÇ graphitization ½ºÅÙ·¹½º½ºÆ¿ÀÇ PITTINGS,

½Ã¸àÆ®ÀÇ ºÎ½Ä

 

1)CORROSION COST
GNPÀÇ 3%³»Áö 4%ÇØ´çÇϸç ÀÌÁß 15-20%´Â ºÎ½ÄÄÁÆ®·ÑÀ» ÅëÇØ ºñ¿ëÀ»

ÁÙÀÏ ¼ö ÀÖ´Ù°í ¿¹»óÇÔ.


2)CORROSION°á°ú
ȯ°æ¿À¿°¹ß»ý, ÇÁ·£Æ® »ý»êÁß´Ü


3)CORROSIONÀ¸·ÎÀÎÇÑ »ç°í
»ó»óÇÒ ¼ö ¾ø´Â ÇÇÇØ, Àΰ£ÀÇ»ý¸íÀ» ¾Ñ¾Æ°£´Ù

 

2.±Ý¼Ó»êÈ­(OXIDATION OF METAL)

1)»êÈ­Çʸ§ 40NM - 500NM : »ö°¥·Î ±¸ºÐ, ºûÀÇÆÄÀ庸´Ù ÀÛÀº°æ¿ì ±¸ºÐºÒ°¡.
2)»êÈ­¸ÞÄ«´ÏÁò:
3)»êÈ­¿¡ µû¸¥ ±Ý¼ÓºÐ·ù
LINEAR OXIDATION METAL
VOLATILE OXIDATION METAL
PARABOLOC OXIDATION METAL
LOGARITHMIC OXIDATION METAL
NOBLE METAL

3.È­ÇÐÀü±âºÐÇØ¿ø¸®

1)FREE ENERGY CONSIDERATION
2)ELECTROMOTIVE FORCE VALUES
3)NERNST EQUATION

4.ºÎ½ÄÀ» ÀÏÀÇÅ°´Â ¿ä¼Ò

5.PASSIVITY

6.ºÎ½Ä»óÅÂÀÇ °Ë»ç¹× ¸ð´ÏÅ͸µ

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