Year: 1996
Type: article
Abstract: As part of an㎝going pr句ect a㎞〔klg to evaluate the suitabihty of aluminide overlay coatings to prσt㏄t wet・ seal areas of bipolar plates jn Moken Carb㎝ate Fuel Cell(MCFC)plants，this work i皿ustrates the prel㎞ary resu虻s ob蛤血ed血er織luat血g dle hot corrosi㎝resis伽ce of recently』devebped Fe alun血ide alloys血Li／K carb㎝ate me脆s undlerbαh oxidizing and reducing MCFC gas c㎝diti㎝s，Bymeans ofout-of」 cell tests虻has be㎝fbmd that Fe aluminides wkh-25wt％Al possess1㎝g tem corrosiσn resistance to carbσnate melts exp㏄iany血the oxidant㎝vir㎝m㎝t． l INTRODUCTI(DN Oneofthec血ica1角ctorslin血jngtheuse釦1 1i餓㎞e of the Molten Carbonate Fuel Cells (MCFCs)is the poor hσt corrosi㎝resistance of sta血iess steels used 長：》r 血e bipolar plates、 hl particular，血e sea1血g edges of血e plates(血e socalled Gwet-sear areas)expehen㏄strong1㏄alized coπosive ph㎝om㎝a leading to progressive loss of eledLrolyte and gas舳deleterious ef㎞s on the ceH ef行cie蹴cy，Hence，wet-seal areas of s胎血less st㏄ls are usuaHy be血g prσt㏄ted w辻h alumimm di仔ヒsi㎝coat㎞gs出at ehhance廿亘eir hσt con osion fesistance．It is well㎞own，infゑct，that alum血ium provides high corrosiQn resistance but also develqpsco灯osi㎝productlayers幅thinsulating proper es so 廿1at alloys 輌廿l high alun㎞um c㎝tents are suiねbleσnly長》r血e passive zones of the plate． A柚ou塾d玉e QO㎎》aしib 盆y Gf the Al
Language: English
Subfield: Surfaces, Coatings and Films
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2467351915