Microstructure and mechanical properties of the modified layer obtained by low temperature plasma nitriding of nanocrystallized 18Ni maraging steel

2013 ◽  
Vol 47 ◽  
pp. 575-580 ◽  
Author(s):  
M.F. Yan ◽  
Y.Q. Wu ◽  
R.L. Liu ◽  
M. Yang ◽  
L.N. Tang
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Maraging Steel ◽  
Plasma Nitriding ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Microstructure And Mechanical Properties ◽  
Modified Layer

Microstructure and Mechanical Properties of SiC-Al2O3 Nanocomposite Prepared by Surface Modified SiC Nanopowders

2007 ◽  
Vol 336-338 ◽  
pp. 2251-2253
Author(s):  
Lu Ting Yan ◽  
Wen Jie Si ◽  
Lian Yun Liu ◽  
Yan Peng Zheng ◽  
Chun Ai Dai
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Plasma Polymerization ◽  
Bending Strength ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Microstructure And Mechanical Properties ◽  
The Matrix ◽  
Ultimate Bending Strength ◽  
Surface Modified

SiC nanopowders were surface modified by low temperature plasma polymerization. 5vol% SiC-Al2O3 nanocomposite was prepared by adding the surface modified SiC nanopowders into the matrix of Al2O3.The influence of surface modified SiC nanopowders on the properties and structure of SiCAl2O3 nanocomposite was studied. The surface modified SiC-Al2O3 nanocomposite had higher density and nicer mechanical properties than untreated SiC- Al2O3 nanocomposite because of the improvement of dispersion. The hardness and toughness of the SiC- Al2O3 nanocomposite were higher than monolithic Al2O3 but the ultimate bending strength was not perfect because of retardation of the densification and formation of unsintered pores caused by the induced oxygen during the process of powder treatment.

scholarly journals Effect of Low-Temperature Plasma Nitriding on Corrosion and Surface Properties of Duplex Stainless Steel UNS S32205

2020 ◽  
Vol 29 (4) ◽  
pp. 2612-2622
Author(s):  
Yamid E. Núñez de la Rosa ◽  
Oriana Palma Calabokis ◽  
Paulo César Borges ◽  
Vladimir Ballesteros Ballesteros
Keyword(s):  
Stainless Steel ◽  
Low Temperature ◽  
Duplex Stainless Steel ◽  
Surface Properties ◽  
Plasma Nitriding ◽  
Low Temperature Plasma ◽  
Temperature Plasma

Dry Progressive Stamping of Copper-Alloy Snaps by the Plasma Nitrided Punches

2018 ◽  
Vol 920 ◽  
pp. 28-33 ◽  
Author(s):  
Tatsuhiko Aizawa ◽  
Hiroshi Morita
Keyword(s):  
Low Temperature ◽  
Plasma Nitriding ◽  
Life Time ◽  
Ceramic Coatings ◽  
Low Temperature Plasma ◽  
Micro Structure ◽  
Temperature Plasma ◽  
Stamping Die ◽  
Wear And Friction ◽  
Die Set

The dry progressive stamping was strongly required to make mass production of clothing parts and beverage cans. The duplex coating was one of the most reliable means to protect the dies and punches from wear and friction and to prolong their life time. In this coating, the die and punch was first surface-treated to have sufficient hardness in compatible to the hard ceramic coatings. In the present study, the low temperature plasma nitriding at 673 K was employed to harden the six kinds of punches and dies for progressive stamping of copper alloyed fucks. The micro-structure and nitrogen mapping were investigated by SEM with EDS to demonstrate that the hardening took place by nitrogen super saturation into SKD11 matrix without nitride precipitations. These nitrogen super-saturated punches and dies were fix into the progressive die set for dry stamping. No significant wear of tools as well as reduction of stamping loads even after a million shots proved that the low temperature plasma nitriding should be suitable to make hardening of dry stamping die substrates even without use of hard ceramic coatings.

Sign in / Sign up

Export Citation Format

Share Document