文章基本信息

标题：Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
本地全文：下载
作者：Teng-wei Zhu ; Cheng-liang Miao ; Zheng Cheng 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2018
卷号：186
DOI：10.1051/matecconf/201818602001
语种：English
出版社：EDP Sciences
摘要：The influence of the mechanical properties of X70 pipeline steel under different annealing temperature was studied. The corresponding microstructure was investigated by the Field Emission Scanning Electron Microscopy. The results showed that the yield strength and the tensile strength both experienced from rise to decline with the increase of annealing temperature. The grain sizes were coarse and a large amount of cementite precipitated due to preserving temperature above 550 °, which induced matrix fragmentation and deteriorate the -10 ° DWTT Toughness. There were little changes on the microstructure and mechanical properties when the annealing temperature was under 500 °.