 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 2 | 1/1 | 返回列表 |
| 查看: 459 | 回復(fù): 1 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
huangguaha木蟲(chóng)之王 (文壇精英)
我不是我
|
[求助]
標(biāo)準(zhǔn)引言部分，謝謝
|
||
|
Crevice corrosion of iron-base and nickel-base stainless alloys can occur when an occlusion or crevice limits access of the bulk environment to a localized area of the metal surface. Localized environmental changes in this stagnant area can result in the formation of acidic/high chloride conditions that may result in initiation and propagation of crevice corrosion of susceptible alloys. In practice, crevices can generally be classified into two categories: (1) naturally occurring, that is, those created by biofouling, sediment, debris, deposits, etc. and (2) man-made, that is, those created during manufacturing, fabrication, assembly, or service. Crevice formers utilized in laboratory and field studies can represent actual geometric conditions encountered in some service applications. Use of such crevice formers in service-type environments are not considered accelerated test methods. The geometry of a crevice can be described by the dimensions of crevice gap and crevice depth. Crevice gap is identified as the width or space between the metal surface and the crevice former. Crevice depth is the distance from the mouth to the center or base of the crevice. |
回復(fù)此樓» 猜你喜歡
一志愿北化求調(diào)劑
已經(jīng)有4人回復(fù)
-
085601材料工程找調(diào)劑
已經(jīng)有6人回復(fù)
-
318一志愿吉林大學(xué)生物與醫(yī)藥 求調(diào)劑
已經(jīng)有3人回復(fù)
-
一志愿雙一流機(jī)械285分求調(diào)劑
已經(jīng)有4人回復(fù)
-
332求調(diào)劑
已經(jīng)有8人回復(fù)
-
一志愿鄭州大學(xué)，080500學(xué)碩，總分317分求調(diào)劑
已經(jīng)有7人回復(fù)
-
一志愿武漢理工，總分321，英一數(shù)二，求老師收留。
已經(jīng)有8人回復(fù)
-
375求調(diào)劑
已經(jīng)有3人回復(fù)
-
南京大學(xué)化學(xué)調(diào)劑
已經(jīng)有7人回復(fù)
-
070300化學(xué)354求調(diào)劑
已經(jīng)有5人回復(fù)
hanches
鐵桿木蟲(chóng) (正式寫(xiě)手)
obscure nacissus
- 翻譯EPI: 12
- 應(yīng)助: 113 (高中生)
- 貴賓: 0.299
- 金幣: 4511.3
- 散金: 579
- 紅花: 7
- 沙發(fā): 3
- 帖子: 485
- 在線: 460.6小時(shí)
- 蟲(chóng)號(hào): 2208505
- 注冊(cè): 2012-12-27
- 性別: GG
- 專業(yè): 食品科學(xué)基礎(chǔ)
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
huangguaha: 金幣+100, 翻譯EPI+1, ★★★★★最佳答案, 非常感謝~~ 2013-03-12 17:11:06
phu_grassman: 金幣+2, thanks 2013-03-12 18:17:41
huangguaha: 金幣+100, 翻譯EPI+1, ★★★★★最佳答案, 非常感謝~~ 2013-03-12 17:11:06
phu_grassman: 金幣+2, thanks 2013-03-12 18:17:41
|
當(dāng)有閉合和裂縫出現(xiàn)使金屬表面局部區(qū)域無(wú)法和周圍大環(huán)境接觸時(shí)，對(duì)于以鐵或鎳為主的合金就會(huì)發(fā)生隙間腐蝕。在空氣不流動(dòng)的區(qū)域里發(fā)生的局部環(huán)境變化將造成酸/高氯化物情況的形成，而它使本就脆弱的合金開(kāi)始或進(jìn)一步發(fā)生隙間腐蝕。 實(shí)際上，縫隙通常被分為兩類：（1）自然形成的，即由生物淤積、沉淀、碎片、堆積等造成的（2）人為造成的，即在加工、制造、組裝或維護(hù)過(guò)程中產(chǎn)生的。實(shí)驗(yàn)室和專業(yè)研究方面使用的縫隙樣板，可以呈現(xiàn)在維護(hù)過(guò)程中產(chǎn)生的實(shí)際幾何學(xué)情況。 在服務(wù)型領(lǐng)域使用這些縫隙樣板，并不認(rèn)為是有加速作用的試驗(yàn)方法�？p隙的幾何學(xué)信息可用裂縫空隙和深度描述。裂縫空隙指的是金屬表面與裂縫的寬度或空間，深度指的是從開(kāi)口到縫隙中心或底部的距離。 |
2樓2013-03-12 16:38:26
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 huangguaha 的主題更新
| 2 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 349求調(diào)劑 +5 | 李木子啊哈哈 2026-03-25 | 5/250 |
|
|---|---|---|---|---|
|
|
[考研] 298求調(diào)劑 +4 | 種圣賜 2026-03-28 | 4/200 |
|
|
[考研] 086000生物與醫(yī)藥調(diào)劑 +4 | Feisty。 2026-03-28 | 8/400 |
|
|
|
[考研] 322求調(diào)劑 +7 | 宋明欣 2026-03-27 | 7/350 |
|
|
|
[考研] 食品工程專碩一志愿中海洋309求調(diào)劑 +4 | 小張zxy張 2026-03-26 | 8/400 |
|
|
|
[考研] 312，生物學(xué)求調(diào)劑 +3 | 小譯同學(xué)abc 2026-03-28 | 3/150 |
|
|
|
[考研] 【求調(diào)劑】085601材料工程專碩 | 總分272 | +6 | 腳滑的守法公民 2026-03-27 | 6/300 |
|
|
|
[考研] 275求調(diào)劑 +10 | jjjjjjjjjjl 2026-03-27 | 10/500 |
|
|
|
[考研] 材料292調(diào)劑 +12 | 橘頌思美人 2026-03-23 | 12/600 |
|
|
|
[考研] 08開(kāi)頭275求調(diào)劑 +4 | 拉誰(shuí)不重要 2026-03-26 | 4/200 |
|
|
|
[考研] 一志愿吉大071010，316分求調(diào)劑 +3 | xgbiknn 2026-03-27 | 3/150 |
|
|
|
[考研] 求調(diào)劑，一志愿 南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩 +4 | @taotao 2026-03-26 | 5/250 |
|
|
|
[考研] 317求調(diào)劑 +7 | 蛋黃咸肉粽 2026-03-26 | 7/350 |
|
|
|
[考研] 085601求調(diào)劑總分293英一數(shù)二 +4 | 鋼鐵大炮 2026-03-24 | 4/200 |
|
|
|
[考研] 289求調(diào)劑 +17 | 碩星赴 2026-03-23 | 17/850 |
|
|
|
[考研] 打過(guò)很多競(jìng)賽，085406控制工程300分，求調(diào)劑 +3 | askeladz 2026-03-26 | 3/150 |
|
|
|
[考研] 材料與化工304求B區(qū)調(diào)劑 +3 | 邱gl 2026-03-25 | 3/150 |
|
|
|
[考研] 282求調(diào)劑 +3 | wcq131415 2026-03-24 | 3/150 |
|
|
|
[考研]
 085404電子信息284分求調(diào)劑
+4
|
13659058978 2026-03-24 | 4/200 |
|
|
|
[考博] 26申博自薦 +3 | whh869393 2026-03-24 | 3/150 |
|