| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a manufacturing method of a golf club head for increasing a carry and improve durability. SOLUTION: In this golf club head, at least a part of a face part for hitting a ball is made of an alloy satisfying the following requirements 1-3, and the alloy is formed by using alloy powder alloyed according to a mechanical ironing method. 1: the alloy consists of three or more constituent metallic elements belonging to element groups adjacent to each other in the element periodic table. 2: a difference of an atomic radius between at least two constituent elements is 10% or more. 3: heat of mixing between a principal constituent element and another constituent element is -10 kcal/mol or more.</p> |
