Effects of β-cooling rates on microstructural characteristics and hardness variation of a dual-phase Zr alloy

2021 ◽  
pp. 105619
Author(s):  
Yueyuan Wang ◽  
Linjiang Chai ◽  
Fangli Zhang ◽  
Ke Chen ◽  
Haotian Guan ◽  
...  
Keyword(s):  
Dual Phase ◽  
Microstructural Characteristics ◽  
Cooling Rates ◽  
Hardness Variation ◽  
Zr Alloy

Effects of β-cooling rates on microstructural characteristics and hardness of Ti–5Al–5Mo–5V–3Cr–1Fe metastable β Ti alloy

2022 ◽  
Vol 276 ◽  
pp. 125318
Author(s):  
Zhiying Zheng ◽  
Linjiang Chai ◽  
Zhihao Li ◽  
Weijiu Huang ◽  
Lin Tian ◽  
...  
Keyword(s):  
Ti Alloy ◽  
Microstructural Characteristics ◽  
Cooling Rates

Dissolution and Precipitation of Excess Phases in High-Nitrogen Steels

2010 ◽  
Vol 638-642 ◽  
pp. 3026-3031 ◽  
Author(s):  
A.G. Svyazhin ◽  
Liudmila M. Kaputkina
Keyword(s):  
Nitrogen Content ◽  
Cooling Rate ◽  
Nitrogen Concentration ◽  
Dual Phase ◽  
High Nitrogen ◽  
Cooling Rates ◽  
Cast Structure ◽  
Nitrogen Steels ◽  
Excess Phases ◽  
Dissolution And Precipitation

Cast structure of ferric, austenitic and dual-phase high-nitrogen alloys and steels saturated with nitrogen at pressures of up to 3.2 MPa and solidified at cooling rates of 2 to 4•104 K/s has been investigated. Increasing the nitrogen concentration in the alloy and decreasing the cooling rate results in smaller nitrogen content in α and γ solutions and in larger content of crystallization nitrides.

Achieving the Dual Phase Structure in Low Alloyed Steel with Slow Cooling Rate

2008 ◽  
Vol 575-578 ◽  
pp. 1117-1122
Author(s):  
Tarja Jäppinen ◽  
Seppo Kivivuori
Keyword(s):  
Cooling Rate ◽  
Phase Structure ◽  
Steel Wire ◽  
Optical Microscope ◽  
Carbon Steels ◽  
Alloying Elements ◽  
Dual Phase ◽  
Low Carbon ◽  
Slow Cooling ◽  
Cooling Rates

In steel wire processing it is difficult to reach a homogenous structure throughout the cross-section of the wire particularly in greater diameters. One alternative for producing a homogenous structure is to find a cooling path with a wide transformation temperature range. Fully austenite steel wire rolled at high temperatures can be decomposed into ferritic-martensitic dual phase structure using relatively slow cooling rates. Test materials were low alloyed low carbon steels with variations in alloying elements. Gleeble-1500 thermomechanical simulator was utilised to study the effect of cooling rate on decomposition of austenite after deformation. The microstructures were studied with an optical microscope. In certain low alloyed steels slow cooling rates eliminate the bainite transformation and instead martensite is formed. The final microstructure depends mainly on the carbon content but also on the amount of other alloying elements and their effects on the austenite phase.

scholarly journals Effect of Nb on Microstructural Characteristics of Ti-Nb-Ta-Zr Alloy for Biomedical Applications

2002 ◽  
Vol 43 (12) ◽  
pp. 2964-2969 ◽  
Author(s):  
Shujun Li ◽  
Yulin Hao ◽  
Rui Yang ◽  
Yuyou Cui ◽  
Mitsuo Niinomi
Keyword(s):  
Biomedical Applications ◽  
Microstructural Characteristics ◽  
Zr Alloy
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