%0 Journal Article
%T Microstructure Evolution and Tensile Properties of Pure Ti Subjected to Rapidly Heating and Quenching
%A Weisong ZHAO
%A Wei ZHANG
%A Jinyu GUO
%A Boquan WANG
%A Jingdong GUO
%A Ke LU
%A <br>Weisong
%A ZHAO
%A Wei
%A ZHANG
%A Jinyu
%A GUO
%A Boquan
%A WANG
%A Jingdong
%A GUO
%A Ke
%A LU
%J 材料科学技术学报
%D 2006
%I 
%X The pure α-Ti samples were heated at an extremely high rate (～106 K/s) to the temperature ofβ phase zone followed by a rapidly quenching in an electro-pulsing treatment. After the treatment, micrometer-thick lamellar substructures were generated within the original equiaxed α-Ti coarse grains. Misorientations across adjacent lamellae are of a few degrees. The ultrafine lamellar substructures originated from a non-equilibrium α-β-α' phase transformation during rapidly heating-quenching process with a short exposure time at high temperatures. Tensile strength was increased by about 100 MPa due to the formation of the ultrafine lamellar substructure while the same tensile plasticity (elongation-to-failure) was maintained relative to the original sample. The strengthening effect could be attributed to the effective blockage of dislocation motions by a high density of sub-boundaries.
%K Pure Ti
%K Microstructure
%K Properties
%K Rapidly heating<br>钛
%K 微观结构
%K 性能
%K 快速加热
%K 快速淬火
%K 热处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=7CFE4FCBB76BAF28BB4073BC7C679345&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=6235172E4DDBA109&eid=5D9D6A8FC2C66FD8&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=10