INTERPHASE STRESS CORROSION CRACKING OF ALLOY Ti-24Al-11Nb IN METHANOL SOLUTION
INTERPHASE STRESS CORROSION CRACKING OF ALLOY Ti-24Al-11Nb IN METHANOL SOLUTION作者机构:Univ of Science and Technology Beijing Beijing China
出 版 物:《Acta Metallurgica Sinica(English Letters)》 (金属学报(英文版))
年 卷 期:1996年第9卷第2期
页 面:121-128页
核心收录:
学科分类:08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)]
主 题:Ti-24Al-11Nb,hydrogen induced cracking,interphase stress corrosion cracking methanol
摘 要:For alloy Ti-24Al-11Nb,stress corrosion cracking(SCC) in methanol solution and hydrogen induced cracking(HIC) during dynamic charging at room temperature have been *** has shown that the normalised threshold stress intensities of SCC failure for various microstructures are KISCC/KC =0.53 0.69 and the threshold value for SCC arresting KISCC/ KIC=*** threshold values of HIC during dynamic charging are close to that of SCC,but da/dt or fracture time of HIC is one to three orders of magnitude smaller or longer than that of SCC,*** surface for HIC is also different from that for *** the Ti-24Al-Nb alloy-methanol systein,a kind of inierphase SCC has been found For the microstructures resulting from furnace cooling,SCC initiated and propagated preferentially along theα2/βinterphase boundaries,displaying the microstructure on the fracture surface of ***,there is no interphase SCC for the microstructure resulting from air cooling.