Effect of Hot Rolling on Microstructure and Texture Evolution of Mg-Li Based Alloy

2011 ◽  
Vol 690 ◽  
pp. 347-350 ◽  
Author(s):  
Vinod Kumar ◽  
Govind ◽  
Rajiv Shekhar ◽  
Kantesh Balani
Keyword(s):  
Hot Rolling ◽  
Texture Evolution ◽  
Rolling Process ◽  
Structural Features ◽  
Β Phase ◽  
Hot Rolling Process ◽  
Effect Of Hot Rolling ◽  
Hot Rolled ◽  
Increased Activity ◽  
Electron Back Scattered Diffraction

Mg-Li based alloy, namely Mg-9%Li-5%Al-3%Sn-1%Zn (LATZ9531) was cast and consequently hot rolled at ~573K. In the present study, as cast and hot rolled structural features has been investigated by scanning electron microscope and electron back scattered diffraction (EBSD). Phase analysis revealed presence of major Mg-rich α-phase and Li-rich β-phase. Significant crystallographic texture evolution due to conventional hot rolling process was observed due to the increased activity of the non-basal slip mode.

Microstructure and Texture Evolution during Hot Rolling of Mg-9Li-7Al-1Sn Alloy for Aerospace Application

2011 ◽  
Vol 702-703 ◽  
pp. 85-88
Author(s):  
Vinod Kumar ◽  
R. Balasubramaniam ◽  
Rajiv Shekhar ◽  
Kantesh Balani
Keyword(s):  
Hot Rolling ◽  
Texture Evolution ◽  
Rolling Process ◽  
Grain Structure ◽  
Aerospace Application ◽  
Β Phase ◽  
Hot Rolling Process ◽  
Α Phase ◽  
Hot Rolled ◽  
Increased Activity

In the present work, Mg - 9wt. % Li - 7% wt. Al – 1 wt. % Sn (LAT971) alloy was cast and hot rolled at ~573K. Phase analysis of LAT971 revealed the presence of dual phase structure namely Mg-rich α- and Li-rich β-phase. After hot rolling, it was observed that dynamic recrystallization led to refinement of the α-phase grain structure. Significant crystallographic texture evolution, characterized by electron backscatterd diffraction, revealed increased activity of the non-basal (101 ̅0) slip plane after conventional hot rolling process.

Microstructure and Texture Comparison of an Acicular Ferrite Pipeline Steel with Different Hot Rolling Process

2011 ◽  
Vol 399-401 ◽  
pp. 264-267
Author(s):  
Hai Yan Wang ◽  
Hui Ping Ren ◽  
Le Han ◽  
Zi Li Jin ◽  
Hao Sun
Keyword(s):  
Hot Rolling ◽  
Acicular Ferrite ◽  
Pipeline Steel ◽  
Orientation Distribution ◽  
Rolling Process ◽  
X80 Pipeline Steel ◽  
Hot Rolling Process ◽  
X80 Steel ◽  
Hot Rolled ◽  
Electron Back Scattered Diffraction

Microstructure of X80 pipeline steel with different hot rolling process was compared using Optical microscopy (OM), Bulk X-ray texture and micro orientation analysis was carried out by Orientation distribution function (ODF) and Electron back-scattered diffraction (EBSD), to analyze the various texture components of the pipeline steels under two different rolling processes. The results show that the final microstructures under the two schedules both present typical acicular ferrite characteristic. On the other side, the corresponding textures were found mainly comprised of two fibers in the rolling and normal direction in hot rolled X80 steel plate, there were obvious {112} , {110} , and {111} fiber, which seemed to be related with the mechanical properties anisotropy. Therefore, the influences of the microstructure and texture on the anisotropy were also discussed in this paper.

Experience of Hot Pack Rolling Application for Production of Specific Steels or Creep Resistant Alloys

2020 ◽  
Vol 989 ◽  
pp. 699-704
Author(s):  
Nikita S. Deryabin ◽  
Sergey M. Chernyshev ◽  
Sergey N. Veselkov
Keyword(s):  
Hot Rolling ◽  
Deformation Behavior ◽  
Import Substitution ◽  
Rolling Process ◽  
Plastic Range ◽  
Pack Rolling ◽  
Hot Rolling Process ◽  
Hot Rolled ◽  
Rolled Plates ◽  
Hot Pack

Under the current conditions, the consumption of special purpose alloys or steels is growing. This is due to the development of the import substitution program. It should be noted, that such materials possess specific deformation behavior, which requires providing particular conditions of a hot rolling process. One of the characteristics of the deformation behavior is the narrow thermal plastic range. Therefore, it is necessary to conduct a hot rolling in several stages, which include interchange of heating and rolling processes. For the purpose to resolve the issue, the experience of the multilayer hot rolling of plates has been investigated where all advantages of this way of a hot rolling process were used. Based on the method of the multilayer hot rolling, the pack rolling has been developed which gives the possibility of production of hot-rolled plates from special purpose alloys or steels.

Effect of hot rolling process on the mechanical and microstructural property of the 9Cr–1Mo steel

2011 ◽  
Vol 38 (11) ◽  
pp. 2397-2403 ◽  
Author(s):  
Jun Hwan Kim ◽  
Jong Hyuk Baek ◽  
Sung Ho Kim ◽  
Chan Bock Lee ◽  
Kwang Su Na ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Rolling Process ◽  
Microstructural Property ◽  
Hot Rolling Process ◽  
Effect Of Hot Rolling

Microstructures and Strength of Hot-Rolled Mg-Zn-Y Alloys

2011 ◽  
Vol 291-294 ◽  
pp. 137-140
Author(s):  
Yao Min Zhu ◽  
Qiu Ran Gao ◽  
Feng Zhang Ren ◽  
Shi Jie Fang
Keyword(s):  
Grain Size ◽  
Tensile Strength ◽  
Hot Rolling ◽  
Rolling Process ◽  
Recrystallization Process ◽  
Fine Grained ◽  
Hot Rolling Process ◽  
Fine Grained Structure ◽  
Cast Alloys ◽  
Hot Rolled

The effects of the hot-rolling process on microstructures and strength were investigated for two kinds of magnesium alloy Mg-Zn-Y and Mg-Zn-Y-Nd. In comparison with the as-cast alloys, the tensile strength of Mg-Zn-Y and Mg-Zn-Y-Nd both increases 45%, whereas their elongation decreases 73%, 60% via hot-rolling process, respectively. The results show that the dynamic recrystallization process and the pining effect of I-phase during hot rolling contribute to the fine-grained structure formation. The hot-rolling process has refined the grain size greatly.

scholarly journals Effect of Hot Rolling Process on Deep Drawability and Ridging Tendency of Ti Stabilized 17Cr Stainless Steel

1980 ◽  
Vol 66 (6) ◽  
pp. 657-666 ◽  
Author(s):  
Yasuhiro NAKAGAWA ◽  
Tetsu SAKAMOTO ◽  
Isamu YAMAUCHI ◽  
Taketomo YAMAZAKI ◽  
Manabu UENO
Keyword(s):  
Stainless Steel ◽  
Hot Rolling ◽  
Rolling Process ◽  
Deep Drawability ◽  
Hot Rolling Process ◽  
Effect Of Hot Rolling

Effect of Sn Addition on Corrosion Properties of As-Cast and Hot-Rolled AZ31 Magnesium Alloys

2017 ◽  
Vol 750 ◽  
pp. 124-128
Author(s):  
Yunus Turen ◽  
Didem Güzel ◽  
Huseyin Zengin ◽  
Yavuz Sun ◽  
Hayrettin Ahlatci
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Hot Rolling ◽  
Rolling Process ◽  
Az31 Magnesium Alloy ◽  
Corrosion Properties ◽  
Electric Resistance Furnace ◽  
Hot Rolling Process ◽  
Working Solution ◽  
Hot Rolled

In this study, the effect of Sn addition on corrosion resistance of as-cast and hot rolled AZ31 magnesium alloy was investigated. Sn additions were made by 0.2 wt%, 0.5 wt% and 1 wt%. An electric resistance furnace was used to produce alloys. Hot rolling process was performed at 350 °C by 40% thickness reduction at one rolling pass. Microstructure characterizations were performed by optical (OM) and scanning electron microscope (SEM). Immersion tests and electrochemical analyses were performed to investigate the corrosion resistance of the alloys. A 3.5% NaCl working solution at room temperature was used in both corrosion tests. The results showed that Sn addition decreased the primary dentrite size and restricted the growth of secondary dentritic arm. The as-cast structures transformed to dynamically recrystallized grain structures after hot-rolling process in all the alloys. Corrosion resistance of AZ31 magnesium alloy tended to decrease with Sn addition. This decrease was more clear in homogenized and hot-rolled states while there were some flactuations in as-cast states.

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