%0 Journal Article %T Microstructural Evolution of Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd Titanium Alloy with Carbon Additions %A Shangzhou ZHANG %A Yuan GAO %A Ziquan LIU %A Yuyin LIU %A Rui YANG %A
Shangzhou %A ZHANG %A Yuan %A GAO %A Ziquan %A LIU %A Yuyin %A LIU %A Rui %A YANG %J 材料科学技术学报 %D 2006 %I %X The effect of carbon addition on microstructural evolution was studied in a near-α titanium alloy(Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd). It was found that flake and ribbon titanium carbides with a NaCl crystal structure formed in the as-cast alloys with carbon additions of over 0.17 wt pct. Flake carbide particles are the product of eutectic transformation and precipitate from the high-temperature β phase. The ribbon carbide particles are primary phases formed prior to the nucleation of any metallic phases. The as-cast alloys with carbide precipitation after heat-treatment atβt-30℃ followed by water quenching showed the spheroidization of α lamellae and partial dissolution of carbide particles. After annealing at βt 15℃, carbide particles are mostly distributed at the grain boundary and spheroidized through mixed grain boundary plus bulk diffusions. %K Titanium alloy %K Carbon %K Microstructure %K Heat treatment %K Carbide
钛合金 %K 微观结构 %K 热处理 %K 碳辅助剂 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=DBCB65951FECAAE08C61410D8F31CA69&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=94C357A881DFC066&sid=984BD2F4D19B9D1C&eid=E6A0A363CA4FC5CF&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=20