The brittle morphologies become much more notable, and appear the inter-and trans-granularfracture mode after sodium corrosion at high temperature for both of W-specimens.
钠腐蚀后，两种钨试样的沿晶脆断特征变得更为显著，为沿晶和穿晶混合型脆性断裂。
2
The rupture reasons of tube joint weld of the stainless steel pressure meter are analyzed. It is characteristic of stress corrosion cracking and intergranularfracture.