{"id":2233,"date":"2021-08-04T12:53:31","date_gmt":"2021-08-04T12:53:31","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2233"},"modified":"2021-08-04T12:57:01","modified_gmt":"2021-08-04T12:57:01","slug":"high-strength-stainless-steel-used-in-aircraft-applications","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/vi\/high-strength-stainless-steel-used-in-aircraft-applications\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y bay"},"content":{"rendered":"

Ch\u00fang ta th\u01b0\u1eddng g\u1ecdi \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n 800MPa, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t cao h\u01a1n 500MPa th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t cao h\u01a1n 1380MPa th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 si\u00eau cao. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh h\u00e0ng kh\u00f4ng \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng vi\u1ec7c n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y bay v\u00e0 \u0111\u1ed9ng c\u01a1 m\u00e1y bay ph\u1ea7n l\u1edbn ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u kim lo\u1ea1i. Do th\u00e9p c\u00f3 \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 d\u1ebbo dai cao, kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t \u0103n m\u00f2n \u1ee9ng su\u1ea5t cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp t\u1ed1t n\u00ean m\u1ed9t s\u1ed1 b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u ch\u00ednh c\u1ee7a m\u00e1y bay nh\u01b0 b\u1ed9 ph\u1eadn h\u1ea1 c\u00e1nh, d\u1ea7m, kh\u1edbp ch\u1ecbu \u1ee9ng su\u1ea5t cao, \u1ed1c v\u00edt v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao kh\u00e1c v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n

Th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao ch\u1ee7 y\u1ebfu bao g\u1ed3m th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a Martensite v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a b\u00e1n Austenite. \u0110\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a martensite \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch bi\u1ebfn \u0111\u1ed5i martensite v\u00e0 x\u1eed l\u00fd l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a, \u01b0u \u0111i\u1ec3m l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 cao, \u0111\u1ed3ng th\u1eddi do h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p, crom cao, molypden cao v\u00e0 \/ ho\u1eb7c \u0111\u1ed3ng cao, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 n\u00f3i chung l\u00e0 kh\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9 austenit \u00edt h\u01a1n 18Cr-8Ni; C\u1eaft t\u1ef1 do, kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t, kh\u00f4ng c\u1ea7n \u1ee7 c\u1ee5c b\u1ed9 sau khi h\u00e0n, qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n. Nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh l\u00e0 ngay c\u1ea3 \u1edf tr\u1ea1ng th\u00e1i \u1ee7, c\u1ea5u tr\u00fac c\u1ee7a n\u00f3 v\u1eabn l\u00e0 martensite carbon th\u1ea5p n\u00ean kh\u00f3 ti\u1ebfn h\u00e0nh gia c\u00f4ng ngu\u1ed9i bi\u1ebfn d\u1ea1ng s\u00e2u. Lo\u1ea1i th\u00e9p \u0111i\u1ec3n h\u00ecnh l\u00e0 17-4PH<\/a> v\u00e0 PH13-8Mo, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn \u1ed5 tr\u1ee5c ch\u1ed1ng \u0103n m\u00f2n c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 ph\u1eadn \u1ed5 tr\u1ee5c \u0111\u1ed9ng c\u01a1, \u1ed1c v\u00edt, v.v. ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 400oC. PH13-8Mo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh ch\u1ed1ng \u0103n m\u00f2n \u1ed5 tr\u1ee5c h\u00e0ng kh\u00f4ng.<\/p>\n

Th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng k\u1ebft t\u1ee7a b\u00e1n Austenite c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng, bi\u1ebfn d\u1ea1ng ngu\u1ed9i v\u00e0 h\u00e0n \u1edf tr\u1ea1ng th\u00e1i Austenite, sau \u0111\u00f3 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t s\u1ef1 bi\u1ebfn \u0111\u1ed5i martensite v\u00e0 l\u00e0m c\u1ee9ng k\u1ebft t\u1ee7a b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ef1 ph\u1ed1i h\u1ee3p \u0111\u1ed9 b\u1ec1n kh\u00e1c nhau. Th\u00e9p c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n nhi\u1ec7t t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u1ee9ng su\u1ea5t v\u00e0 \u0111\u1eb7c bi\u1ec7t th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 540oC. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ph\u1ee9c t\u1ea1p, y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd nhi\u1ec7t r\u1ea5t ch\u00ednh x\u00e1c (\u00b1 5oC); Xu h\u01b0\u1edbng l\u00e0m c\u1ee9ng c\u1ee7a th\u00e9p l\u1edbn, v\u00e0 th\u01b0\u1eddng c\u1ea7n nhi\u1ec1u th\u1eddi gian \u1ee7 trung gian \u0111\u1ec3 gia c\u00f4ng ngu\u1ed9i bi\u1ebfn d\u1ea1ng s\u00e2u. C\u00e1c l\u1edbp \u0111i\u1ec3n h\u00ecnh l\u00e0 17-7PH<\/a>, PH15-7Mo, v.v. Lo\u1ea1i th\u00e9p n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh h\u00e0ng kh\u00f4ng \u0111\u1ec3 l\u00e0m vi\u1ec7c \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 400oC so v\u1edbi k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c \u0103n m\u00f2n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c lo\u1ea1i \u1ed1ng, m\u1ed1i n\u1ed1i \u1ed1ng, l\u00f2 xo, \u1ed1c v\u00edt, v.v.<\/p>\n

 <\/p>\n

Thi\u1ebft b\u1ecb h\u1ea1 c\u00e1nh m\u00e1y bay<\/h3>\n

C\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o thi\u1ebft b\u1ecb h\u1ea1 c\u00e1nh m\u00e1y bay l\u00e0 30CrMnSiNi2A, 4340, 300M, Aermet100 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb h\u1ea1 c\u00e1nh v\u00e0 \u1ed1c v\u00edt m\u00e1y bay kh\u00e1c c\u00f3 y\u00eau c\u1ea7u cao h\u01a1n h\u1ea7u h\u1ebft \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng k\u1ebft t\u1ee7a, ch\u1eb3ng h\u1ea1n nh\u01b0 17-4PH<\/a> \u0111\u1ed1i v\u1edbi c\u00e0ng \u0111\u00e1p c\u1ee7a m\u00e1y bay F-15, 15-5pH \u0111\u1ed1i v\u1edbi c\u00e0ng \u0111\u00e1p c\u1ee7a m\u00e1y bay B-767. Th\u00e9p PH13-8mo c\u00f3 ti\u1ec1m n\u0103ng thay th\u1ebf 17-4PH, 15-5PH<\/a>, 17-7PH, PH15-7Mo v\u00e0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00e1c do kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u1ee9ng su\u1ea5t t\u1ed1t h\u01a1n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng k\u1ebft t\u1ee7a c\u00f9ng lo\u1ea1i.<\/p>\n

V\u00f2ng bi m\u00e1y bay<\/h3>\n

C\u00f4ng ty FAG c\u1ee7a \u0110\u1ee9c \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e9p kh\u00f4ng g\u1ec9 martensite b\u1ed5 sung nit\u01a1 Cronidur30 (0,31%C-0,38%N-15% Cr-L %Mo), \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh PESR nung ch\u1ea3y l\u1ea1i x\u1ec9 \u0111i\u1ec7n trong m\u00f4i tr\u01b0\u1eddng nit\u01a1 \u00e1p su\u1ea5t cao. N\u00f3 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u1edbi h\u00e0m l\u01b0\u1ee3ng nit\u01a1 cao \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng ho\u00e0n to\u00e0n, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao h\u01a1n SUS440. N\u00f3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi gi\u00e1 tr\u1ecb DN cao (D: \u0111\u01b0\u1eddng k\u00ednh trong \u1ed5 tr\u1ee5c\/mm, N: v\u00f2ng quay tr\u1ee5c\/arin) v\u00ec \u0111\u1eb7c t\u00ednh c\u1ee7a n\u00f3 l\u00e0 lo\u1ea1i c\u1ee9ng ho\u00e0n to\u00e0n, c\u00f9ng m\u1ed9t Cronidur30 c\u00f3 th\u1ec3 th\u1ecfa m\u00e3n gi\u00e1 tr\u1ecb \u1ee9ng su\u1ea5t n\u00e9n d\u01b0 v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u1ee9t g\u00e3y DN4 tri\u1ec7u t\u1ea1i \u0111\u1ed3ng th\u1eddi th\u00f4ng qua qu\u00e1 tr\u00ecnh d\u1eadp t\u1eaft t\u1ea7n s\u1ed1 cao. Nh\u01b0ng nhi\u1ec7t \u0111\u1ed9 \u1ee7 th\u1ea5p h\u01a1n 15OoC, n\u00f3 kh\u00f4ng th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 v\u00f2ng bi do s\u1ed1c nhi\u1ec7t sau khi t\u1eaft \u0111\u1ed9ng c\u01a1.<\/p>\n

C\u00e1c b\u1ed9 ph\u1eadn c\u1ea5u tr\u00fac mang m\u00e1y bay<\/h3>\n

Th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao trong k\u1ebft c\u1ea5u \u1ed5 tr\u1ee5c m\u00e1y bay ch\u1ee7 y\u1ebfu l\u00e0 15-5PH<\/a>, 17-4PH, PH13-8Mo, v.v., bao g\u1ed3m ch\u1ed1t n\u1eafp h\u1ea7m, bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao, l\u00f2 xo v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c. M\u00e1y bay d\u00e2n d\u1ee5ng s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao cho x\u00e0 ngang c\u00e1nh, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00e9p 15-5PH cho x\u00e0 ngang c\u00e1nh Boeing 737-600; Lo\u1ea1i th\u00e9p c\u00e1nh A340-300 SPAR PH13-8Mo. Ph13-8Mo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai cao, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t ngang, ch\u1eb3ng h\u1ea1n nh\u01b0 khung th\u00e2n m\u00e1y bay. G\u1ea7n \u0111\u00e2y h\u01a1n, Custom465 \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m nh\u1edd \u0111\u1ed9 b\u1ec1n t\u0103ng l\u00ean v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n do \u1ee9ng su\u1ea5t. Custom465 \u0111\u01b0\u1ee3c Carpenter ph\u00e1t tri\u1ec3n tr\u00ean c\u01a1 s\u1edf Custom450 v\u00e0 Custom455 \u0111\u1ec3 s\u1ea3n xu\u1ea5t thanh d\u1eabn h\u01b0\u1edbng n\u1eafp m\u00e1y bay, thanh d\u1eabn h\u01b0\u1edbng thanh, h\u1ed9p s\u1ed1, gi\u00e1 \u0111\u1ee1 \u0111\u1ed9ng c\u01a1, v.v. Th\u00e9p hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt MMPDS-02, AMS5936 v\u00e0 ASTM A564. Th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao HSL180 (0,21C-12,5Cr-1.0Ni-15.5Co-2.0Mo) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o k\u1ebft c\u1ea5u m\u00e1y bay, c\u00f3 c\u00f9ng c\u01b0\u1eddng \u0111\u1ed9 1800MPa nh\u01b0 th\u00e9p h\u1ee3p kim th\u1ea5p nh\u01b0 4340 v\u00e0 c\u00f3 c\u00f9ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng k\u1ebft t\u1ee7a nh\u01b0 SUS630.<\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Ch\u00fang ta th\u01b0\u1eddng g\u1ecdi \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n 800MPa, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t cao h\u01a1n 500MPa th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 cao, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t cao h\u01a1n 1380MPa th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u01b0\u1eddng \u0111\u1ed9 si\u00eau cao. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh h\u00e0ng kh\u00f4ng \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng vi\u1ec7c n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y bay v\u00e0 \u0111\u1ed9ng c\u01a1 m\u00e1y bay ph\u1ea7n l\u1edbn ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u kim lo\u1ea1i. [\u2026]<\/p>","protected":false},"author":1,"featured_media":2235,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-social-activities"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/comments?post=2233"}],"version-history":[{"count":1,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2233\/revisions"}],"predecessor-version":[{"id":2234,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2233\/revisions\/2234"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/media\/2235"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/media?parent=2233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/categories?post=2233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/tags?post=2233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}