Both 軋 (アツ) and 轢 (レキ) are On'yomi. 軋轢 means friction, discord, conflict, or strained relations between people or groups, often implying a gradual wearing down of harmony. Incorrect readings like かつれき or おつれき are phonetic errors. がつれき is also an incorrect sound change.

軋 (アツ) も轢 (レキ) も音読みです。人と人との間に生じる不和や争い、意見の食い違いによる摩擦を意味します。かつれきやおつれき、がつれきは読み間違いです。人間関係のギクシャクした状態を表します。