A selenious acid type solution of better performance was obtained by the test of polarization curve, the test of corrosion resistance and the test of duration life.

• 研究改进了现行的钢铁件常温黑化工艺 ,通过极化曲线测试、耐蚀性测试、寿命测试得到了性能良好的常温亚硒酸体系黑化液。