To break down the eutectic carbidenetwork of A-cast structure with grain size 4-5 grade, tensile strain of 60% is needed.
当铸志晶粒度力4 ~ 5级寸，破碎晶炭化物组织需要有60%以上的拉应变。
2
In order to detect the carbidenetwork in high carbon hypereutectoid steel wire rods accurately, two kinds of detection method of the carbidenetwork are compared.
The results showed that the higher internal stress and serious carbidenetwork in the banded carbide in the inner roll body were the main causes of heavy back-up roll stationary cracking.