High carbon steels are susceptible to solidification cracking because their carbon content is high.
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Main alloying elements in QTLA steels include ().
A. Mn
B. Cr
C. Mo
D. V
E. 2-2-1
F. 弹幕
Normally, microstructures of QTLA steels include ()
A. lath martensite
B. lower bainite
C. upper bainite
D. ledeburite
E. 2-2-1
F. 弹幕
Normally, we'd better pay more attention to () when we weld plain carbon steels.
A. solidification cracking
B. hydrogen induced cracking
C. toughness decrease
D. reheat cracking
E. 2-1-2
F. 期末
Normally, heat treatment for QTLA steels including ().
A. austenitizing
B. quench
C. temper
D. anneal
E. 2-2-1
F. 期末
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