Which of the following is coated outside along with a conventional cast-iron sleeve in a hybrid liner?(a) Austenitic steel 21-4N(b) Nimonic alloy(c) S.A.E 1045(d) AlSI 12 alloyI had been asked this question in a job interview.This intriguing question originated from Engine Components topic in section Basic Engine Components of Automotive Engine Design

Which of the following is coated outside along with a conventional cas

1.	Which of the following is coated outside along with a conventional cast-iron sleeve in a hybrid liner?(a) Austenitic steel 21-4N(b) Nimonic alloy(c) S.A.E 1045(d) AlSI 12 alloyI had been asked this question in a job interview.This intriguing question originated from Engine Components topic in section Basic Engine Components of Automotive Engine Design
Answer» Correct option is (d) AlSI 12 alloy Explanation: The HYBRID liner PRODUCED at Federal-Mogul’s Fried Berg (Germany) factory, consists of a CONVENTIONAL cast-iron sleeve coated on the OUTSIDE with on AlSi 12 alloy with a melting point below that of the aluminum engine BLOCK, using a proprietary Federal-Mogul process.

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