Indexed by:会议论文
Date of Publication:2010-11-06
Included Journals:EI、CPCI-S、Scopus
Volume:146-147
Page Number:160-165
Key Words:Hot forming; 22MnB5; Tempering temperature; Kahn tear; Fracture toughness
Abstract:The influence of low tempering temperature (TT) on mechanical properties and fracture toughness of ultra high strength boron steel 22MnB5 for hot forming was investigated by tensile and Kahn tearing experiments. Compared with the conventional quenchable boron steel, The results show that the toughness of tested steel are both preferable when tempered at 200 degrees C, 40min. When TT between 100 degrees C similar to 200 degrees C, The tear strength (TS) and unit propagation energy (UPE) of quenched steel heightened along with the temperature raised, but in 200-350 degrees C temperature range, the toughness appears negatively growth. Appropriate TT could improve the mechanical properties and fracture toughness obviously, and the temper brittleness can be avoided.
Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Automotive Engineering
Discipline:Vehicle Engineering
Business Address:Room,A305,The Vehicle Experiment Center of SAE, DUT.
Contact Information:yingliang@dlut.edu.cn
办公邮箱 : yingliang@dlut.edu.cn
办公地点 : 汽车基础实验教学中心A305
Open time:..
The Last Update Time:..
