| 查看: 179 | 回复: 1 | ||
| 当前主题已经存档。 | ||
| 【悬赏金币】回答本帖问题，作者liang4305将赠送您 5 个金币 | ||
liang4305金虫 (小有名气)
|
[求助]
[求助]一段文献翻译
|
|
|
请帮忙翻译一段文字 Thermal spray coatings are formed by successive impingements and interbonding materials among the splats, solidified individual molten particles. Depending on the processing conditions employed during the spray process, deposits are produced with an assortment of microstructures and properties. This study highlights how the coating oxidation differences are influenced by the mechanisms involved during the spray process. The commercial steel powder referenced Amdry XPT 512 is chosen for a systematic study of comparison across different spraying techniques. Steel particles were sprayed with a F4 plasma torch and with a shrouded plasma spray process used in order to protect particles against atmospheric oxidation. The plasma jet was successively shielding by an inert gas shroud and by an oxidizing gas shroud. In-flight oxidation and post impact oxidation present in coatings are discussed in detail and the effects of these mechanisms on coating properties are addressed. The comparison was made on in-flight particle characteristics and on coating properties in terms of oxide content and porosity level. Using shrouded gas, in-flight characteristics are quite similarly independent of the nature of the shrouded gas. This way, the comparison of oxide contents present in the coatings corresponds to in-flight oxidation and is completely dependent on the nature of the shrouded gas. Comparing these results to those obtained by APS, a decrease in both velocity and temperature of in-flight particles was observed leading also to a significant decrease in oxide contents and to a slight increase in porosity level compared to coatings sprayed with air shrouding. [ Last edited by liang4305 on 2008-11-20 at 10:01 ] |
回复此楼» 猜你喜欢
国自然面上和省基金B类撒花
已经有15人回复
-
有没有学校收留
已经有3人回复
-
312求调剂
已经有3人回复
-
华师大读博
已经有5人回复
-
又一批高校组建人工智能学院 师资行吗 不是骗人吗
已经有5人回复
-
急需审稿人！！！
已经有3人回复
-
申博/考博
已经有8人回复
-
295分求调剂
已经有6人回复
-
085600材料与化工调剂
已经有6人回复
-
有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业
已经有7人回复
敕勒川道长8328
银虫 (初入文坛)
- 应助: 0 (幼儿园)
- 金币: 510.5
- 帖子: 45
- 在线: 30.5小时
- 虫号: 639211
- 注册: 2008-10-28
- 性别: GG
- 专业: 植物生理与生化
2楼2008-11-20 14:59:33
5