%0 Journal Article
%T STRAIN AND FRACTURE OF LIQUID PHASE SINTERED ALLOY 90W-TNi-3Fe<br>
%J 金属学报
%D 1983
%I 
%X The feature of deformation and fracture of a liquid phase sintered alloy 90W-7Ni-3Fe has been studied. It was found that the matrix of the alloy is the first to yield and to undergo plastic deformation. The cracks may be initiated along the W grain/matrix interfaces as the bonding force here is weak. While the bonding force is strengthened to a greater extent than the cleavage failure stress of W, the transgranular cleavage cracking of W grains and the plastic teaing of the matrix may happen simultaneously. Hydrogen is shown as one of the main sources of the inteffacial embrittlement of as-sintered specimen. The removal of the hydrogen both stored in the voids and dissolved in metals of the W grain/matrix interfaces is easily done by heat treatment under vacuum. Thereafter, the bonding force at interface as well as the tensile strength and plasticity of specimen can be modified.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=23F0B229C3E4E5E464FB9D6B269DEF4B&yid=A7F20A391020FDEE&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=331211A5F5616413&eid=D767283A3B658885&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1