Effect of Si content on mechanical properties of Ti-Si-N ternary alloys prepared by spark plasma sintering

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Khemglad P., Kajornchaiyakul J., Kondoh K., Khantachawana A.

ผู้เผยแพร่: Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.): 2017

Volume number: 751 KEM

หน้าแรก: 14

หน้าสุดท้าย: 18

จำนวนหน้า: 5

ISBN: 9783035710823

นอก: 1013-9826

eISSN: 1662-9795

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028710225&doi=10.4028%2fwww.scientific.net%2fKEM.751.14&partnerID=40&md5=7d9475ea1d1f665b85a2ce28db6c5954

ภาษา: English-Great Britain (EN-GB)

ดูบนเว็บไซต์ของสำนักพิมพ์

บทคัดย่อ

In the present work, the strengthen mechanism of Ti-Si-N ternary alloys prepared by Spark Plasma Sintering (SPS) was investigated. Ti, Si and TiN substrate powders were prepared in order to obtain nominal composition of Ti-0.35Si-1TiN and Ti-0.7Si-1TiN (wt %). Homogenization was performed before extrusion. Microstructure and phase identification were analyzed by Optical Microscope (OM) and X-ray diffraction (XRD). In order to evaluate the mechanical properties of extruded specimens, micro hardness test and tensile test were carried out. The XRD results show that no Si and TiN particles are remained after SPS and no any reaction caused of intermetallic compound during heat treatment and extrusion processes. It is found that the abnormal phase with high N-content was observed in matrix phase. It is also obvious that increasing Si from 0.35Si to 0.7Si (wt %) can increase yield stress and ultimate tensile stress from 1006ฑ15 to 1092ฑ5 MPa and 1089ฑ10 to 1170ฑ10 MPa, respectively. Hence, the strengthening mechanism by addition Si content into Ti-1TiN (wt %) is only solid solution mechanism. ฉ 2017 Trans Tech Publications, Switzerland.

คำสำคัญ

Substrate Powders, Ti-Si-N Ternary Alloys