Weldability

...Therefore, the characteristics of welds are a combination of physical metallurgical phenomena such as the melting and solidification of metals, chemical metallurgical reactions, and heat treatment. Among general metallic materials, there are some that are easy to weld and others that are difficult to weld, and the term weldability is often used to describe the difficulty of welding. Weldability can be divided into the property of being able to join without defects when welded (weldability or joinability in manufacturing), and the property of the welded product being suitable for use in terms of strength, toughness, corrosion resistance, airtightness, etc. (weldability related to practical performance). ...

*Some of the terminology that refers to "weldability" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…このため溶接部の特性は金属の溶融凝固現象，化学冶金反応，熱処理などの物理冶金現象の組み合わさったものとなる。　一般の金属材料には溶接のしやすいもの，しにくいものがあるが，溶接の難易を表すのに溶接性weldabilityということばがよく用いられる。溶接性は，溶接時に欠陥がなく接合ができるという性質(工作上の溶接性または接合性)と，溶接されたものが強度，靱性，耐食性，気密性などの点で使用に適する性質(使用性能に関する溶接性)に分けられる。…

※「weldability」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報