Definition and Verification of Shape Meter Method
Definition and Verification of Shape Meter Method作者机构:Central Iron&Steel Research Institute Shanghai Baosteel Group Co
出 版 物:《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)
年 卷 期:2002年第9卷第2期
页 面:53-57页
核心收录:
学科分类:080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
主 题:superplastic solid state welding welding rate ultrasonic nondestructive testing
摘 要:Based on quantitative microscopic examinations of welds and welding rate for different steels (40Cr and T10A) joint, which possess the ultra fine microstructure after high frequency hardening (HFH) and salt bath cyclic quenching (SCQ), the suitable defect grey scale threshold value was determined, and the welding rate of superplastic solid state welding of different steels (40Cr and T10A steel) was systematically inspected and analyzed by means of self made ultrasonic imaging inspection system. The experimental results showed that the superplastic solid state weld of different steels can be inspected more accurately, reliably and quickly by this system, and the results were in good accordance with that of metallographic observation. The welding rate of superplastic welding is in linear relation with tensile strength of joint.