%0 Journal Article
%T ^MECHANICAL PROPERTIES AND MICROSTRUCTURES OF TWO Ni_3Al ALLOYS<br>两种含硼Ni3Al合金的微观组织与力学性能
%A 李钢
%A 王中光
%A 郭建亭
%A 谭明晖
%A 师昌绪
%J 金属学报
%D 1995
%I 
%X The microstructures and mechanical properties of two polycrystalline alloys, a Ni_3Al(0.6 at- %B) alloy and a Ni_3Al(1 .0 at-%B) alloy. are studied. The Ni_3Al(0.6 B)is a single phase alloy whereas the Ni_3Al(1.0 B) consists of few boride eutectic at the grain boundaries. Tensile tests and high cycle fatigue tests at room temperature are carried out in air.The results indicate that the fatigue resistance of the Ni_3Al(0.6B) alloy is higher than that of the Ni_3Al(1.0B) alloy. although, the latter is much higher than the former in tensile strength. The characteristics of fatigue crack initiation and propagation in the two Ni_3Al(B) alloys are different.
%K Ni_3Al
%K mechanical properties
%K microstructures<br>Ni3Al
%K 力学性能
%K 显微组织
%K 硼
%K 金属间化合物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=5687D6E2765379A80F66785418FF2F52&yid=BBCD5003575B2B5F&vid=4AD960B5AD2D111A&iid=0B39A22176CE99FB&sid=0401E2DB1F51F8DE&eid=68D88C2FCF9C3098&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=1