Improving fatigue strength of hydromachinery 13Cr‐4Ni CA6NM steel with nitriding and thermal spraying surface treatments

2021 ◽  
Author(s):  
Erick Hernández‐Rengifo ◽  
Sara Aida Rodríguez ◽  
John Jairo Coronado
Keyword(s):  
Fatigue Strength ◽  
Thermal Spraying ◽  
Surface Treatments ◽  
Ca6nm Steel

scholarly journals Evaluation Method for Residual Stresses Induced by Surface Treatments of Crankshafts and Effect of These Stresses on Fatigue Strength

2020 ◽  
Vol 55 (1) ◽  
pp. 3-10
Author(s):  
Mariko Matsuda ◽  
Hitomi Adachi ◽  
Tomonori Ikegami ◽  
Tatsuhiko Kabutomori ◽  
Toshihiko Sasaki
Keyword(s):  
Fatigue Strength ◽  
Residual Stresses ◽  
Evaluation Method ◽  
Surface Treatments

The Effect of Surface Treatment of Ti-6Al-4V Alloy Specimens

2005 ◽  
Vol 297-300 ◽  
pp. 2429-2434 ◽  
Author(s):  
Sun Young Son ◽  
Shinichi Nishida ◽  
Nobusuke Hattori ◽  
H.D. Jang ◽  
Y.J. Son
Keyword(s):  
Fatigue Strength ◽  
Surface Treatment ◽  
Fatigue Limit ◽  
Fatigue Behavior ◽  
Surface Treatments ◽  
Dlc Coating ◽  
Processing Cost ◽  
Plating Method ◽  
A New Technique ◽  
High Processing

As though titanium and its alloy have specific tensile strength, excellent corrosion resistance, ect., they have not been widely used until now mainly due to their extremely high processing cost. Therefore, it is considered that the above barrier will become smaller if it is possible to improve the mechanical properties of Ti-alloys by applying surface treatments on properties, especially fatigue strength of about 6kinds of surface treatment Ti-6Al-4V alloys. This is, surface treatments by 2kinds of plasma, 3kinds of DLC (diamond-like carbon) coating and the electroness plating method, have been studied for Ti-6Al-4V alloy . This study presents an analysis of fatigue behavior from the viewpoint of micro-hardness and adhesion work through a new technique in Ti-6Al-4V alloy. In addition, the specimen's surface has been successively observed by the replica method during tests and it seems clear that the fatigue strength is improved by the DLC treatment in comparison with that of the conventional Ti-6Al-4V alloy by about 20% (fatigue limit improvement by 70MPa). Though all the hardness value of these specimens increased, the fatigue limit improved only in the case of two kinds of specimens by DLC coating.

P7 Influence of surface treatments on the fatigue strength of Ti alloy

2005 ◽  
Vol 2005 (0) ◽  
pp. 437-438
Author(s):  
Shin-ichi NISHIDA ◽  
Nobusuke HATTORI ◽  
Yusuke NAKABARU ◽  
Akemi TUCHIYAMA
Keyword(s):  
Fatigue Strength ◽  
Surface Treatments ◽  
Ti Alloy
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