粉末冶金制品实验室均匀腐蚀全浸试验结果(7天:试样表面以 疏松的黑色腐蚀产物为主,少量黄褐色腐蚀产物;14天: 试样表面以疏松的黑色腐蚀产物为主,少量黄褐色腐蚀产物;21天: 试样表面以疏松的黑色腐蚀产物为主,少量黄褐色腐蚀产物;28天:试样表面以疏松的黑色腐蚀产物为主,少量黄褐色腐蚀产物;35天:试样表面以疏松的黑色腐蚀产物为主,少量黄褐色腐蚀产物)。
Laboratory uniform corrosion full immersion test results of powder metallurgy products (7 days: the sample surface is mainly loose black corrosion products and a small amount of yellowish brown corrosion products; 14 days: The sample surface is mainly loose black corrosion products and a small amount of yellowish brown corrosion products; 21 days: The sample surface is mainly loose black corrosion products and a small amount of yellowish brown corrosion products; 28 days: the sample surface is mainly loose black corrosion products and a small amount of yellowish brown corrosion products; 35 days: the sample surface is mainly loose black corrosion products and a small amount of yellowish brown corrosion products).