中国有色金属学报(英文版)
中國有色金屬學報(英文版)
중국유색금속학보(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2013年
8期
2270-2275
,共6页
弭光宝%黄旭%曹京霞%曹春晓%黄秀松
弭光寶%黃旭%曹京霞%曹春曉%黃秀鬆
미광보%황욱%조경하%조춘효%황수송
Ti40阻燃钛合金%抗点燃性能%氧化物融合物%抗点燃机理%钛火
Ti40阻燃鈦閤金%抗點燃性能%氧化物融閤物%抗點燃機理%鈦火
Ti40조연태합금%항점연성능%양화물융합물%항점연궤리%태화
Ti40 fireproof titanium alloys%fireproof performance%fused oxides%fireproof mechanism%titanium fire
采用摩擦点燃的方法,研究摩擦压力p和氧浓度xO对Ti40阻燃钛合金的抗点燃性能的影响,建立了定量描述Ti40钛合金抗点燃性能的p-xO关系曲线,并结合SEM、XRD和EDS等测试手段分析Ti40钛合金的抗点燃机理。结果表明:Ti40钛合金的p-xO关系曲线符合抛物线规律,p在0.1~0.25 MPa变化时,xO的变化范围约为25%。当 xO≥70%时,Ti40钛合金在室温条件下即会被点燃,并迅速发展为持续的稳定燃烧,且时间长于10 s。Ti40钛合金的抗点燃性能优于TC4钛合金的,Ti40合金被点燃时所对应的xO至少比TC4高40%。当xO较低时,Ti40钛合金的抗点燃性能对p较为敏感,而随着xO的增大,抗点燃性能对xO更加敏感。摩擦表面形成的具有强相互作用的V2O5、TiO2和Cr2O3氧化物融合物是Ti40钛合金的抗点燃性能提高的根本原因。
採用摩抆點燃的方法,研究摩抆壓力p和氧濃度xO對Ti40阻燃鈦閤金的抗點燃性能的影響,建立瞭定量描述Ti40鈦閤金抗點燃性能的p-xO關繫麯線,併結閤SEM、XRD和EDS等測試手段分析Ti40鈦閤金的抗點燃機理。結果錶明:Ti40鈦閤金的p-xO關繫麯線符閤拋物線規律,p在0.1~0.25 MPa變化時,xO的變化範圍約為25%。噹 xO≥70%時,Ti40鈦閤金在室溫條件下即會被點燃,併迅速髮展為持續的穩定燃燒,且時間長于10 s。Ti40鈦閤金的抗點燃性能優于TC4鈦閤金的,Ti40閤金被點燃時所對應的xO至少比TC4高40%。噹xO較低時,Ti40鈦閤金的抗點燃性能對p較為敏感,而隨著xO的增大,抗點燃性能對xO更加敏感。摩抆錶麵形成的具有彊相互作用的V2O5、TiO2和Cr2O3氧化物融閤物是Ti40鈦閤金的抗點燃性能提高的根本原因。
채용마찰점연적방법,연구마찰압력p화양농도xO대Ti40조연태합금적항점연성능적영향,건립료정량묘술Ti40태합금항점연성능적p-xO관계곡선,병결합SEM、XRD화EDS등측시수단분석Ti40태합금적항점연궤리。결과표명:Ti40태합금적p-xO관계곡선부합포물선규률,p재0.1~0.25 MPa변화시,xO적변화범위약위25%。당 xO≥70%시,Ti40태합금재실온조건하즉회피점연,병신속발전위지속적은정연소,차시간장우10 s。Ti40태합금적항점연성능우우TC4태합금적,Ti40합금피점연시소대응적xO지소비TC4고40%。당xO교저시,Ti40태합금적항점연성능대p교위민감,이수착xO적증대,항점연성능대xO경가민감。마찰표면형성적구유강상호작용적V2O5、TiO2화Cr2O3양화물융합물시Ti40태합금적항점연성능제고적근본원인。
The effect of friction pressure p and oxygen concentration xO on the fireproof performance of Ti40 titanium alloy was studied by frictional ignition test, the p-xO relationship quantitatively describing the fireproof performance of Ti40 was established and the fireproof mechanism of Ti40 was analyzed by SEM, XRD and EDS. The results show that the p-xO relationship of Ti40 obeys parabolic rule. The varying range of xO is about 25%while p varies within 0.1?0.25 MPa. When xO is≥70%, Ti40 is ignited immediately at room temperature and develops into continual and steady burning, and the duration of burning is more than 10 s. The fireproof performance of Ti40 is better than TC4 while xO of Ti40 is at least 40%higher than TC4. When xO is low, the fireproof performance of Ti40 is more sensitive to p;when xO increases, it is more sensitive to xO. The forming of fused oxides of V2O5, TiO2 and Cr2O3 with strong inner interaction during friction is the basic reason of high fireproof performance of Ti40.