AI helps you reading Science

AI generates interpretation videos

AI extracts and analyses the key points of the paper to generate videos automatically


pub
Go Generating

AI Traceability

AI parses the academic lineage of this thesis


Master Reading Tree
Generate MRT

AI Insight

AI extracts a summary of this paper


Weibo:
The hardness match affects the wear property of wheels

Wear Property of Cast Steel Wheel Material in Rail Truck

Journal of Iron and Steel Research International, no. 3 (2009): 73-77

Cited by: 2|Views2
WOS SCOPUS

Abstract

Wear property of material plays a key role in the service time of workpiece. A major objective in the development of new wheel materials is to improve the wear performance. The wear property of B and B+ grade cast steel materials was reported. The results showed that B+ grade cast steel material exhibited better wear property than the B g...More

Code:

Data:

0
Introduction
  • The size of all samples is shown in Fig. 1[7J It is visibly seen that the compositions and mechanical properties of wheel steel both meet the technical criterion summarized in Table 1 and Table 2
Highlights
  • After 2 X 104 round, the mass loss of B grade steel sample is increased compared with that of B+ grade steel, which indicates that the B + grade steel has better wear property than B grade steel
  • There are no differences before 2 X 104 round, and for samples coupled with B+ grade wheel, the losses begin to increase
  • The metallographic analysis of the micro-wear mechanics confirms that the property of B+ grade steel is superior to that of B grade steel
  • The hardness match affects the wear property of wheels
Results
  • Results and Discussion

    2. 1 Data analysis Wear is defined by the progressive loss of substance from the operating surface of a body occurring as a result of relative motion at the surface-'".

    Fig. 2 is the wheel mass loss curves of B grade steel and B+ grade steel.
  • Before 2 X 104 round, the process belongs to run-in wear, which is dominated by surface oxidation.
  • At this stage, the contact surfaces pose a certain roughness even if finishing machined.
Conclusion
  • Wear in railroad applications has attracted significant attention in the literature in an attempt to develop wheel steels that exhibit improved life performance.
  • The mass loss of B+ grade steel is lower than that of B grade steel.
  • Of the micro-wear mechanics confirms that the property of B+ grade steel is superior to that of B grade steel.
  • The hardness match affects the wear property of wheels
Summary
  • Introduction:

    The size of all samples is shown in Fig. 1[7J It is visibly seen that the compositions and mechanical properties of wheel steel both meet the technical criterion summarized in Table 1 and Table 2
  • Results:

    Results and Discussion

    2. 1 Data analysis Wear is defined by the progressive loss of substance from the operating surface of a body occurring as a result of relative motion at the surface-'".

    Fig. 2 is the wheel mass loss curves of B grade steel and B+ grade steel.
  • Before 2 X 104 round, the process belongs to run-in wear, which is dominated by surface oxidation.
  • At this stage, the contact surfaces pose a certain roughness even if finishing machined.
  • Conclusion:

    Wear in railroad applications has attracted significant attention in the literature in an attempt to develop wheel steels that exhibit improved life performance.
  • The mass loss of B+ grade steel is lower than that of B grade steel.
  • Of the micro-wear mechanics confirms that the property of B+ grade steel is superior to that of B grade steel.
  • The hardness match affects the wear property of wheels
Tables
  • Table1: Compositions of wheel steel
  • Table2: Mechanical properties of wheel steel
Download tables as Excel
Reference
  • Rolling Stock. 2004. 420): 9 (in Chinese). [2J LIU Rui-tang, LIU Wen-boo LIU Jin-yun. Engineering Material Mechanical Property [M]. Harbin: Harbin Institute of Technology Press. 2001 (in Chinese).
    Google ScholarFindings
  • Lie-rning, trans. Foreign Rolling Stock. 2001. 38(3): 41 (in Chinese). [4J Stephen Marich. Wheel-Rail Contact Technologies: The Australian Experience [1]. Railway Gazette International. 2006. (9): 590. [5J ZHANG Bin. LU Guan-jian, LIU Tong-lei. et al. Atlas of Failure Analysis and Damage of Wheels and Tyres in Rail [M]. Beijing: China Railway Publishing House. 2002 (in Chi-
    Google ScholarLocate open access versionFindings
  • nese), ZHANG Bin. Status of the Investigation on the Wheel Tread Spalling in China Railway Rolling Stock [AJ. Committee of the 14th International Wheelset Congress. eds. Proceedings of the 14th International Wheelset Congress [CJ. Orlando: 2004.
    Google ScholarLocate open access versionFindings
  • 9. FU Xiu-qin, ZHANG Hong. Wearing Test Report of Anti Early Shelling Wheels [RJ. Beijing: Metals and Chemistry Institute. China Academy of Railway Sciences. 2007 (in Chinese). Yoshitsugu Kimura. Masami Sekizawa, Akio Nitanai. Wear and Fatigue in Rolling Contact [n. Wear. 2002. 2530-2): 9. Lewis R. Dwyer-Joyce R S. Olofsson U. et al. Wheel Material Wear Mechanisms and Transitions [AJ. Committee of the 14th International Wheelset Congress. eds. Proceedings of the 14th International Wheel set Congress [CJ. Orlando: 2009.
    Google ScholarLocate open access versionFindings
  • Zakharov Sergey M. Goryacheva Irina G. Rolling Contact Fatigue Defect in Freight Car Wheels [1]. Wear. 200258(78): 1142. Ishida M. Iin Y. Aoki F. et al. Influential Factors on Wear of Wheel Flange and Rail Gauge Face [AJ. Committee of the 14th International Wheelset Congress. eds. Proceedings of the 14th International Wheelset Congress [CJ. Orlando: 2004.
    Google ScholarLocate open access versionFindings
  • 9. Joseph Kalousek. Wheel/Rail Damage and Its Relationship to Track Curvature [n. Wear. 2005. 258(7-8): 1330. (2) Under the condition of high nitrogen, the effect of free nitrogen and high cooling rate increased, and the vanadium carbon nitrides could not precipitate completely, therefore, more free nitrogen remained, which led to very few precipitates in the CGHAZ and large grain size.
    Google ScholarFindings
  • (3) For the limitation of cooling time, vanadium carbon nitrides could not precipitate sufficiently, however, under the titanium contained condition, the unmelted or precipitated TiN absorbed some fraction of nitrogen in the matrix and made more precipitate positions for the round V(C, N), and thus, several useful round particles could be seen in titanium-contained steel, and most of them are around TiN.
    Google ScholarFindings
  • [1] Hagasaka T. Muroga T. Grossbeck M L. et al. Effects of Post-Weld Heat Treatment Conditions on Hardness. Microstructures and Impact Properties of Vanadium Alloys [JJ. Journal of Nuclear Materials. 2002. 307-311: 1595. [2J Hannerz N Evjonsson-Holmquist B M. Influence of Vanadium on the Heat-Affected-Zone Properties of Mild Steel [n. Metal
    Google ScholarLocate open access versionFindings
  • Science, 1974, 8: 228. [3J Hart P H M, Mitchell P S. The Effect of Vanadium on the
    Google ScholarFindings
  • Toughness of Welds in Structural and Pipeline Steels. Weld. 1995.74(7): 239. [4J LI Y. Crowther D N. Green M J W. et al. The Effect of Vanadium and Niobium on the Properties and Microstructure of the Intercritically Reheated Coarse Grained Heat Affected Zone in
    Google ScholarLocate open access versionFindings
  • Low Carbon Microalloyed Steels [n. ISIJ International. 2001.
    Google ScholarLocate open access versionFindings
  • 410): 46. [5J LIAO F C. LIU S. Olson D L. Weldability of Nitrogen-Enhanced HSLA Steels [A]. ASME. eds. Proceedings of the 12'h International Conference on Offshore Mechanics and Arctic Engineering [C]. Glasgow: ASME. 1993. 231. [6J Hamada M. Fukada Y. Komizo Y. Microstructure and Precipitation Behavior in Heat Affected Zone of C-Mn Microalloyed Steel Containing Nb. V and Ti [1]. ISIJ International. 1995. 35(0): 1196. [7J EI-Fawakhry'K A. Mekkawy M F. Mishreky M L. Characterization of Precipitates in Vanadium and Titanium Microalloyed Steels [1J. ISIJ International, 1991, 31(9): 1020. [8J YONG Qi-long. Second-Phases in Steel [MJ. Beijing: Metallurgical industry press. 2006 (in Chinese).
    Google ScholarLocate open access versionFindings
Author
mi
liu
liu
fu
fu
xiuqin
xiuqin
Your rating :
0

 

Tags
Comments
小科