典型文献
Highly oxidation-resistant Ti-Mo alloy with two-scale network Ti5Si3 reinforcement
文献摘要：
There is keen interest in using Ti alloys as lightweight structural materials for aerospace and automo-tive industries.However,a long-standing problem for these materials is their poor oxidation resistance.Herein,we designed and fabricated a Ti5Si3 reinforced Ti-4(wt.％)Mo composite with two-scale network architecture by low energy milling and spark plasma sintering.It displays superior oxidation resistance at 800℃owing to the in-situ formation of a multi-component surface layer.This oxide layer has a dense grain size gradient structure that consists of an outer TiO2 layer and an inner SiO2-padding-TiO2 layer,which has remarkable oxidation resistance and thermal stability.Furthermore,it was revealed that the hitherto unknown interaction between Ti5Si3 reinforcement and nitrogen during oxidation would con-tribute to the formation of a TiN nano-twin interface layer,which accommodates the thermal mismatch strain between the oxide layer and matrix.This,along with high adhesion,confers excellent thermal cy-cling life with no cracking or spallation during long-term oxidation.In this regard,the secure operating temperature of this new composite can be increased to 800℃,which provides a design pathway for a new family of Ti matrix composites for high-temperature applications.
文献关键词：
中图分类号：
作者姓名：
Qiong Lu;Yaozha Lv;Chi Zhang;Hongbo Zhang;Wei Chen;Zhanyuan Xu;Peizhong Feng;Jinglian Fan
作者机构：
Powder Metallurgy Research Institute,Central South University,Changsha 410083,China;Department of Mechanical Engineering,Imperial College London,Exhibition Road,London SW7 2AZ,UK;School of Materials Science and Engineering,China University of Mining and Technology,Xuzhou 221116,China
文献出处：
引用格式：
[1]Qiong Lu;Yaozha Lv;Chi Zhang;Hongbo Zhang;Wei Chen;Zhanyuan Xu;Peizhong Feng;Jinglian Fan-.Highly oxidation-resistant Ti-Mo alloy with two-scale network Ti5Si3 reinforcement)[J].材料科学技术（英文版）,2022(15):24-34
A类：
automo
B类：
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AB值：
0.626309
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