scholarly journals Different Phenomena Encountered during Dilatometry of Low-density Steels

2021 ◽  
Author(s):  
Pello Jimbert ◽  
Teresa Guraya ◽  
Idurre Kaltzakorta ◽  
Teresa Gutiérrez ◽  
Roberto Elvira ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Manganese Steel ◽  
Low Density ◽  
Sample Material ◽  
Compositional Change ◽  
High Manganese ◽  
Compositional Gradient ◽  
High Manganese Steel ◽  
Steel Alloys ◽  
Automotive Parts

AbstractIn recent decades, highly alloyed low-density steels are being developed to reduce the weight of different automotive parts. Dilatometry can be a very useful experimental technique to understand phase transformations during heating or cooling of new low-density steel alloys. When performing dilatometry measurements some assumptions are made such as the homogeneity of the sample material tested during the experiment. In this study, dilatometry tests were performed for two different low-density steels, and the variations of the composition between the surface and the inner part of the sample were analyzed. The migration of manganese by diffusion from the interior of the samples and finally its evaporation on the surface under vacuum were observed. This compositional gradient generated in the samples may influence the veracity and interpretation of the results obtained in dilatometry when working with high manganese steel alloys. The detachment of surface grains created by this compositional change near the surface of the samples is also investigated.

Unusual relationship between impact toughness and grain size in a high-manganese steel

2021 ◽  
Vol 89 ◽  
pp. 122-132
Author(s):  
Pan Xie ◽  
Shucheng Shen ◽  
Cuilan Wu ◽  
Jiehua Li ◽  
Jianghua Chen
Keyword(s):  
Grain Size ◽  
Impact Toughness ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel

Low-temperature tensile and impact properties of hydrogen-charged high-manganese steel

2019 ◽  
Vol 44 (13) ◽  
pp. 7000-7013 ◽  
Author(s):  
Young-Hyun Nam ◽  
Jong-Seo Park ◽  
Un-Bong Baek ◽  
Jin-Yoo Suh ◽  
Seung-Hoon Nahm
Keyword(s):  
Low Temperature ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel ◽  
Impact Properties

scholarly journals Bubble Flotation for Purification of High Manganese Steel with Porous Blower

2019 ◽  
Vol 37 ◽  
pp. 375-379
Author(s):  
Ke Zhu ◽  
Zhengbing Xu ◽  
Siyong Zhao ◽  
Jianmin Zeng
Keyword(s):  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel

Experimental Study of Improved Tool in High Manganese Steel Drilling

2010 ◽  
Vol 97-101 ◽  
pp. 1863-1866
Author(s):  
Liang Yang ◽  
Li Xu
Keyword(s):  
Experimental Study ◽  
Simulation Method ◽  
Manganese Steel ◽  
Drill Bit ◽  
Test Results ◽  
Comparison Analysis ◽  
High Manganese ◽  
Drilling Force ◽  
High Manganese Steel ◽  
Drill Tool

Performance of tool has always been a puzzle in the course of high manganese steel drilling. In this paper, improvement of drill tool is been done on drill bit structure and parameters of cutting tip by means of analyzing geometric parameter. By utilizing simulation method correctly, the influence of bit parameter on drilling force is analyzed. Meanwhile, by adopting the way of dividing into groups, comparison experiment between improved and no improved has been done. The comparison analysis of test results is carried out including tool life, wear and drilling force. The conclusion showed that the improved bit has better performance.

The Effect of Cold Asynchronous Rolling Technique on High Manganese Steel Mn13

2012 ◽  
Vol 535-537 ◽  
pp. 757-760
Author(s):  
Xiao Hua Sun ◽  
Chang Ming Qiu ◽  
Yan Feng Wang ◽  
Li Deng
Keyword(s):  
Wear Resistance ◽  
Abrasion Resistance ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel ◽  
Rolling Technique ◽  
Asynchronous Rolling

High manganese steel is a wear-resisting steel. With the rapidly development of industry, it is very important to improve the wear resistance of high manganese steel. We do some experiments with cold asynchronous rolling technique on austenitic high manganese steel.The results show that hardness and impact abrasion resistance are enhanced greatly with the increase of deformation, and the toughness not decrease to very low.

scholarly journals Effect of Niobium on Inclusions in Fe-Mn-C-Al Twinning-Induced Plasticity Steel

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 83
Author(s):  
Fangjie Lan ◽  
Wenhui Du ◽  
Changling Zhuang ◽  
Changrong Li
Keyword(s):  
Thermodynamic Analysis ◽  
Volume Fraction ◽  
Manganese Steel ◽  
High Manganese ◽  
High Manganese Steel ◽  
Niobium Content ◽  
Precipitation Temperature ◽  
Steel Increase ◽  
Inclusions In Steel ◽  
Nb Addition

The effect of Nb addition on the composition, morphology, quantity, and size of inclusions in Fe-Mn-C-Al steel was studied by SEM, EDS, and thermodynamic analysis. The research shows that the number of inclusions in Fe-Mn-C-Al high manganese steel decreases obviously after adding 0.04% element Nb, and some inclusions in the steel evolve into complex niobium inclusions. When the niobium content increases to 0.08%, the influence of niobium on inclusions in steel becomes more obvious. The precipitation temperature of inclusions in Fe-Mn-C-Al steel was analyzed by thermodynamics. The results show that the nucleation core of the composite inclusions is AlN, and then NbC and MnS precipitate locally on its surface. With the increase of Nb, the amount and volume fraction of NbC inclusions precipitated in steel increase.

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