綜合此實驗，以含微量鋯(0.1wt%Zr)或釩(0.1wt%V)之兩種 A201 鑄造用鋁合金銲 料，經型鍛機擠型成銲條，再以此兩種銲條，用氬銲機(TIG)銲補 A201 鑄造用鋁合金 鑄件後，此兩種鑄件，經人工時效熱處理後之常溫(25℃)及高溫(230℃)機械性質，可 得到下列重要結論：
1. 含 微 量 鋯 (0.1wt%Zr) 或 釩 (0.1wt%V) 之 A201 鑄 造 用 鋁 合 金 ， 於 凝 固 時 會 晶 出 Al3(Ti,Zr)相及 Al3(Ti,V)相，使鑄件晶粒明顯細化。
2.以微量鋯(0.1wt%Zr)或釩(0.1wt%V)之 A201 鑄造用鋁合金當銲條，用氬銲機(TIG) 銲補 A201 鑄造用鋁合金鑄件後，其銲道組織皆為等軸細小晶粒，經目視檢查、螢 光檢驗，皆無熱裂(Hot Cracking)發生。
3.以 A201 鑄造用鋁合金中添加(0.1wt％Zr)鋯及 A201 鑄造用鋁合金中添加 0.1wt％
V(釩)當銲條，銲補 A201 鑄造用鋁合金鑄件，此兩種銲件，經人工時效熱處理後之 常溫(25℃)抗拉強度分別為 A201 鑄造用鋁合金的 90％(372MPa/415MPa)及 88％(365 MPa /415MPa)，延展性些微優於母材 A201 鑄造用鋁合金。
4.以 A201 鑄造用鋁合金中添加 0.1wt％Zr(鋯)及 A201 鑄造用鋁合金中添加 0.1wt％
V(釩)之兩種銲料當銲條，銲補 A201 鑄造用鋁合金鑄件，此兩種銲件，經人工時效 熱處理後之高溫(230℃)之抗拉強度分別為 A201 鑄造用鋁合金的 91％(284MPa/313 MPa)及 84％(262MPa/313MPa)，延展性些微優於母材 A201 鑄造用鋁合金。
5.鑄件銲補前預熱，可大幅去除鑄件內所附著之水氣，使銲補後銲道不產生大量的 大、小氣孔，而獲得良好的機機械性質。
6.以此兩種銲料合金(含 0.1wt％Zr 及 0.1wt％V 之 A201 鑄造用鋁合金)當銲條，銲補 A201 鑄造用鋁合金之鑄造缺陷(如氣孔、縮孔、裂縫等)，可藉銲補提高鑄件品質 二次合格率。
53
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