The technology of low hydrogen embrittlement Zn-Ni alloy electroplating on aeronautic high strength steel was studied.

A series of analysis were made on the cracked area,including macro-and micro-analysis,chemical,hardness,microstructure test and hydrogen brittleness removing test.

Study on the hydrogen embrittlement phenomena of carbonitriding tape gear;

On partial gathering of hydrogen and crack growth in hydrogen embrittlement;

Study of hydrogen embrittlement resistivity for 00Cr17Ni14Mo2 austenitic stainless steel at high temperature;

Study on Hydrogen Brittleness and Stress Corrosion Cracking of GCr15 Steel under the Condition of High Stress;

Failure analysis of hydrogen brittleness fracture of torsion spring

By the manufacture instance of two drawing parts namely petrol cover and end cover, the reasons occurring drawing crack defect during manufacture are analyzed separately, the occurring of blue brittleness and hydrogen brittleness during drawing are introduced, as well as related solving and guarding steps are provided.