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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Mushet steel ： ウィキペディア英語版 Mushet steel Mushet steel, also known as Robert Mushet's Special Steel (RMS), self-hardening steel and air-hardening steel,〔.〕 is considered the first tool steel and air-hardening steel.〔.〕 It was invented in 1868 by Robert Forester Mushet. Prior to Mushet steel, steel had to be quenched to harden it.〔 It later led to the discovery of high speed steel.〔 ==Properties== The chemical composition of Mushet steel varied; tungsten was the main alloying constituent, which ranged between 4 and 12%, while manganese (2–4%) and carbon (1.5–2.5%) were the secondary alloying constituents. A typical sample contained 9% tungsten, 2.5% manganese, and 1.85% carbon.〔 Mushet steel was harder than standard water quenched steel. It was found that Mushet steel could be best hardened by submitting it to an air blast after forging.〔 Mushet steel is non-magnetic.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mushet steel」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.