Effect of double source Titanium deposited in nitriding steels on their mechanical properties

被引：2
作者：
Rosales, I. [1 ]
Martinez, H. [2 ]
Guardian, R. [1 ]
Sosa-Coeto, B. A. [1 ]
机构：
[1] Ctr Invest Ingn & Ciencias Aplicadas FCQel UAEM, Cuernavaca 62210, Morelos, Mexico
[2] UNAM, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
来源：
APPLIED SURFACE SCIENCE | 2013年 / 270卷
关键词：
Diffusion; Hardness; Mechanical properties; Surface modification; Modeling; COATINGS;
D O I：
10.1016/j.apsusc.2012.12.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report the improved mechanical properties of three kinds of nitriding steels modified by titanium diffusion either by depositing titanium by PVD and hot-pressing the steel with titanium sheets hot pressed at 950 degrees C. The steels used were AISI series: 1045, O-1 and H-13. A mixed layer of Ti and N compounds was generated by a post treatment. Hardness measurements showed an increase of approximately two times in hardness with respect to the annealed condition. The results of fracture toughness tests indicated excellent strengthening of the steels. The role of composition and microstructure on strengthening are discussed.
引用
收藏
页码：39 / 43
页数：5
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