Modelling of mechanical properties of pearlitic rail steel

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Boonsukachote P., Kingklang S., Uthaisangsuk V.

ผู้เผยแพร่: Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.): 2019

Volume number: 798 KEM

หน้าแรก: 3

หน้าสุดท้าย: 8

จำนวนหน้า: 6

ISBN: 9783035714296

นอก: 1013-9826

eISSN: 1662-9795

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067670446&doi=10.4028%2fwww.scientific.net%2fKEM.798.3&partnerID=40&md5=b883ba1b54e9847cafde2ab3ab69dc35

ภาษา: English-Great Britain (EN-GB)

ดูบนเว็บไซต์ของสำนักพิมพ์

บทคัดย่อ

Railway has become more essential for both mass and goods transportation so that the rails are required to carry higher loads and exhibit longer lifetime. Thus, mechanical properties, especially strength and toughness of rail steel must be continuously increased. In the present work, microstructure, tensile properties and impact toughness of a pearlitic rail steel grade 900A were firstly characterized. It was found that the investigated steel showed high yield and tensile strengths, but moderate elongation. Subsequently, representative volume elements (RVE) model was employed to investigate the effects of bainitic phase on mechanical properties of pearlitic rail steels. The flow stress curves of the individual phases were defined with regard to the chemical composition. As a result, the relationships between predicted yield strengths and tensile strengths in dependence on the phase fraction of bainite were provided. The model can be used to identify the proper microstructure characteristic of rail steel. ฉ 2019 Trans Tech Publications, Switzerland.

คำสำคัญ

Pearlitic rail steel, RVE model