Evaluation of Hydrogen Embrittlement for High-Strength Steel Sheets by Three-Point Bending Test and Effect of Zinc-Based Plating

Abstract

To clarify effects of Zn and Zn-Ni alloy electroplating on the hydrogen embrittlement of SK85 steel sheets with different hardnesses, a method of using three-point bending tests to evaluate hydrogen embrittlement was investigated. Because specimens are easy to prepare and because no notch is required, three-point bending tests are effective as a simple method of evaluating hydrogen embrittlement of zinc-based electroplated high-strength steel sheets.