The　bulk　nanocrystalline　magnets　of　Nd10Y1Fe85-xNb3.5Ti0.5Bx　(x　=　14-22)　and　Nd10Y1Fe69Nb3.5M0.5B16　(M　=　Ti,　Zr,　Cr,　Mo)　in　rod　form　with　a　diameter　of　1.5　mm　were　prepared　by　copper　mold　injection　casting.　The　magnetic　properties,　microstructure　and　corrosion　behavior　of　bulk　magnets　have　been　studied.　It　is　shown　that　the　glass　forming　ability　of　alloy　is　obviously　improved　with　increasing　the　B　content.　For　the　Nd10Y1Fe85-xNb3.5Ti0.5Bx　(x　=　14-22)　alloys,　the　optimal　magnetic　properties　of　B-r　=　6.0　kG,　H-i(c)　=　7.8　-　kOe　and　(BH)(max)　=　6.7　MGOe　can　be　achieved　when　x　=　16,　although　the　sample　of　x　=　22　exhibits　better　corrosion　resistance　than　the　sample　of　x　=　16.　For　the　Nd10Y1Fe69Nb3.5M0.5B16　(M　=　Ti,　Zr,　Cr,　Mo)　alloys,　the　sample　of　M　=　Zr　exhibits　the　best　magnetic　energy　product　of　(BH)(max)　=　7.0　MGOe,　with　B-r　=　6.3　kG　and　H-i(c)　=　8.2　kOe.　While,　the　highest　intrinsic　coercivity　of　H-i(c)　=　8.8　kOe,　with　B-r　=　5.6　kG　and　(BH)(max)　=　5.8　MGOe　is　obtained　in　the　sample　of　M　=　Mo.　The　electrochemistry　analysis　shows　that　the　Zr-doped　sample　has　the　best　corrosion　resistance　among　the　M-doped　alloys.　The　thermogravimetric　analysis　reveals　that　the　oxidation　rates　of　bulk　magnets　are　significantly　enhanced　when　the　temperature　is　above　350　degrees　C,　and　the　Ti-doped　sample　has　the　best　antioxidant　ability　among　the　M-doped　alloys.　(C)　2012　Elsevier　B.　V.　All　rights　reserved.