ＯＤＳスーパーアロイは粉末冶金技術を伴うメカニカルアロイ法により製造されます。

。

ODS superalloy is manufactured by mechanical alloying, a process that involves powder metallurgy technology.

Literal

ODS-super-alloy [topic-は] powder-metallurgy-technology [object-を] accompanying mechanical-alloy-method [by-により] is-manufactured.

A dense technical sentence from metallurgy. 伴う ('to accompany, involve') is the verb that turns 粉末冶金技術 into a modifier of メカニカルアロイ法. により is the formal version of によって ('by means of') — much more common in formal/technical writing. The suffix 法 (ほう) here means 'method, process', common in technical nomenclature: 電気分解法, 合成法, 抽出法, etc.