DC 欄位 | 值 | 語言 |
dc.contributor.author | 楊哲人 | zh_TW |
dc.creator | 楊哲人 | - |
dc.date | 2004 | zh_TW |
dc.date.accessioned | 2006-07-25T10:43:17Z | - |
dc.date.accessioned | 2018-06-28T22:04:18Z | - |
dc.date.available | 2006-07-25T10:43:17Z | - |
dc.date.available | 2018-06-28T22:04:18Z | - |
dc.date.issued | 2004 | - |
dc.identifier | 922216E002031 | zh_TW |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/12480 | - |
dc.description.abstract | 雙相不銹鋼兼具沃斯田鐵系不銹鋼之耐
蝕性與韌性及肥粒鐵系不銹鋼之強度與耐應
力腐蝕性,廣泛應用於化學、石油、能源等
工業。本研究係探討2205 雙相不銹鋼在低溫
時效的脆性及相變態。實驗結果顯示:雙相
不銹鋼在475 ℃ 時效對於脆性有最大的效
應;此時效脆性機構與肥粒鐵系不銹鋼之低
溫時效脆性類似;高溫肥粒鐵相於475 ℃ 時
效,產生離相分解相變態,分解成微細的富
鐵相(α)及富鉻相(α΄),形成不規則形狀且
內部互相連接的網狀結構,差排於此結構中
互相交錯不易移動,導致材料嚴重的脆性。 | zh_TW |
dc.description.abstract | The effect of isothermal treatment (at
temperatures ranging between 400 and 500℃)
on the embrittlement of a 2205 duplex stainless
steel (with 45 ferrite–55 austenite, vol%) has
been investigated. The impact toughness and
hardness of the aged specimens were measured,
while the corresponding fractography was
studied. The results show that the steel is
susceptible to severe embrittlement when
exposed at 475 ℃; this aging embrittlement is
analogous with that of the ferritic stainless
steels, which is ascribed to the degenerated
susceptible to severe embrittlement when
exposed at 475 ℃; this aging embrittlement is
analogous with that of the ferritic stainless
steels, which is ascribed to the degenerated
ferrite phase. High-resolution transmission
electron microscopy reveals that an isotropic
spinodal decomposition occurred during aging
at 475 ℃ in the steel studied; the original
δ-ferrite decomposed into a nanometer-scaled
modulated structure with a complex
interconnected network, which contained an
iron-rich BCC phase (α) and a
chromium-enriched BCC phase (α΄). It is
suggested that the locking of dislocations in the
modulated structure leads to the severe
embrittlement. | en |
dc.format | application/pdf | zh_TW |
dc.format.extent | 6507760 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | zh-TW | zh_TW |
dc.language.iso | zh_TW | - |
dc.publisher | 臺北市:國立臺灣大學材料科學與工程學研究所 | zh_TW |
dc.rights | 國立臺灣大學材料科學與工程學研究所 | zh_TW |
dc.subject | 雙相不銹鋼 | zh_TW |
dc.subject | 脆性 | zh_TW |
dc.subject | 衝擊韌性 | zh_TW |
dc.subject | 硬度 | zh_TW |
dc.subject | 離相分解 | zh_TW |
dc.subject | Duplex stainless steel | en |
dc.subject | Embrittlement | en |
dc.subject | Impact toughness | en |
dc.subject | Hardness | en |
dc.subject | Spinodal decomposition | en |
dc.title | 2205雙相不銹鋼之低溫時效脆性與相變態研究 | zh_TW |
dc.type | report | en |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/12480/1/922216E002031.pdf | - |
dc.coverage | 計畫年度:92;起迄日期:2003-08-01/2004-07-31 | zh_TW |
item.openairecristype | http://purl.org/coar/resource_type/c_93fc | - |
item.openairetype | report | - |
item.languageiso639-1 | zh_TW | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.fulltext | with fulltext | - |
crisitem.author.dept | Materials Science and Engineering | - |
crisitem.author.orcid | 0000-0001-7897-7039 | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 材料科學與工程學系
|