ALUMINUM ALLOY WIRE MATERIAL, ALUMINUM ALLOY STRANDED WIRE, COVERED ELECTRICAL WIRE, WIRE HARNESS, AND METHOD FOR PRODUCING ALUMINUM ALLOY WIRE MATERIAL

摘要

Provided is an aluminum alloy wire rod capable of achieving both a high vibration characteristic and a high bending fatigue characteristics while ensuring high conductivity and a moderate yield strength even when used as an extra fine wire having a strand diameter of less than or equal to 0.5 mm. An aluminum alloy wire rod of the present invention comprises Mg: 0.1 to 1.0 mass%, Si: 0.1 mass% to 1.2 mass%, Fe: 0.10 mass% to 1.40 mass%, Ti: 0 mass% to 0.100 mass%, B: 0 mass% to 0.030 mass%, Cu: 0 mass% to 1.00 mass%, Ag: 0 mass% to 0.50 mass%, Au: 0 mass% to 0.50 mass%, Mn: 0 mass% to 1.00 mass%, Cr: 0 mass% to 1.00 mass%, Zr: 0 mass% to 0.50 mass%, Hf: 0 mass% to 0.50 mass%, V: 0 mass% to 0.50 mass%, Sc: 0 mass% to 0.50 mass%, Co: 0 mass% to 0.50 mass%, Ni: 0 mass% to 0.50 mass%, and the balance: Al and inevitable impurities, wherein in a cross section parallel to the wire rod lengthwise direction, no void having an area greater than 20 µm 2 is present, or even in a case where at least one void having an area greater than 20 µm 2 is present, the presence ratio of the voids is on average in a range of less than or equal to one void/1000 µm 2 .