Effect of Ni additions and hot deformation on precipitation behavior and hardness in Al–Si–Mg aged alloys

2020 ◽  
Vol 828 ◽  
pp. 154429 ◽  
Author(s):  
H.M. Medrano-Prieto ◽  
C.G. Garay-Reyes ◽  
I. Estrada-Guel ◽  
J.M. Mendoza-Duarte ◽  
J.C. Guía-Tello ◽  
...  
Keyword(s):  
Hot Deformation ◽  
Precipitation Behavior ◽  
Ni Additions

Cementite Precipitation of a H21 Tool Steel after Hot Compression and Double Temper

2014 ◽  
Vol 1043 ◽  
pp. 154-158
Author(s):  
Meilinda Nurbanasari ◽  
Panos Tsakiropoulos ◽  
Eric J. Palmiere
Keyword(s):  
High Temperature ◽  
Applied Stress ◽  
Tool Steel ◽  
Hot Deformation ◽  
Lower Bainite ◽  
Precipitation Behavior ◽  
Transformation Mechanism ◽  
Tempered Martensite ◽  
Bainite Transformation ◽  
Precipitation Behaviour

The cementite precipitation behavior in the martensite and banite of the H21 tool steel under high temperature axisymmetric compression test and double temper was investigated. The main purpose on this work is to develop a better understanding regarding the transformation mechanism of bainite and martensite in a H21 tool steel. The selected deformation temperatures were 1100 oC and 1000 oC and the double temper process was carried out at 650 oC for 1 hour respectively. The results showed that the cementite was sensitive to the stress. The applied stress has affected the Fe3C precipitation behaviour by decreasing the number of variants carbides in tempered martensite and decreasing the number of a single variant carbides in tempered lower bainite. The results were in agreement with a displacive mechanism of martensite and bainite transformation. It was also found that hot deformation temperatures selected in this work have the same contribution in decreasing number of variant carbides in tempered martensite and decreasing number of single variant carbides occurred in tempered lower bainite.

Effect of Hot Deformation on the Nitride Precipitation Behavior in High Nitrogen Austenitic Steel

2009 ◽  
Vol 19 (7) ◽  
pp. 951-954 ◽  
Author(s):  
Zhenhua Wang ◽  
Wantang Fu ◽  
Shuhua Sun ◽  
Deli Zhao ◽  
Guoli Zhang ◽  
...  
Keyword(s):  
Austenitic Steel ◽  
Hot Deformation ◽  
Precipitation Behavior ◽  
High Nitrogen ◽  
Nitride Precipitation

Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation

2015 ◽  
Vol 639 ◽  
pp. 173-180 ◽  
Author(s):  
Wenfeng Zhang ◽  
Qingyong Su ◽  
Wei Yan ◽  
Wei Wang ◽  
R. Devesh K. Misra ◽  
...  
Keyword(s):  
Hot Deformation ◽  
Resistant Steel ◽  
Precipitation Behavior ◽  
Heat Resistant Steel ◽  
Heat Resistant

Effect of hot deformation on microstructure and quenching-induced precipitation behavior of Al-Zn-Mg-Cu alloy

2021 ◽  
Vol 172 ◽  
pp. 110861
Author(s):  
Menghan Zhang ◽  
Chengbo Li ◽  
Yong Zhang ◽  
Shengdan Liu ◽  
Jingyu Jiang ◽  
...  
Keyword(s):  
Hot Deformation ◽  
Precipitation Behavior ◽  
Cu Alloy
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