%0 Journal Article
%T EFFECT OF NEGATIVE OVERLOAD ON FATIGUE-CREEP INTERACTION FOR A Ni-BASE ALLOY<br>迭加压应力过载对镍基合金疲劳蠕变交互作用的影响
%A ZHANG Jishan Institute of Metal Ressarch
%A Academia Sinica
%A shenyang
%A YANG Wangyue
%A CHEN Guoliang
%A GENG Qingquan
%A HUANG Linji Beijing Institute of Iron
%A Steel Technology
%A Fushun Steel Works
%A Xindu Mechine Plant
%A <br>张济山
%A 杨王玥
%A 陈国良
%A 耿清全
%A 黄麟基
%J 金属学报
%D 1988
%I 
%X 本文研究了压应力过载峰(S_P)对GH698镍基高温合金700℃下疲劳蠕变交互作用的影响.S_P约在0至-400MPa范围时,断裂周次因存在S_P而增加.当S_P过大或过小时,断裂周次减小.动态蠕变速率的变化和断裂周次呈相反的对应关系.研究表明,S_P的作用表现在四个方面,即减小动态蠕变速率;促进疲劳损伤,引起断裂模式变化;延缓裂纹扩展和产生S_P本身的疲劳损伤.这些作用的强弱随基载循坏应力及S_P值的大小而异.
%K fatigue-creep interaction
%K Ni-base alloy<br>疲劳—蠕变交互作用
%K 镍基合金
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=FF393B0350219971518293B832621B33&yid=0702FE8EC3581E51&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=EFD65B51496FB200&eid=F122871CC7EC92DC&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1